So, I'd had this idea rolling about in the soup of my brain for a while, now- almost ever since For Honor was announced.
Mostly inspired by my time studying Roman culture, as well as common complaints that I've seen from multiple people- both in these very forums, as well as on YouTube.

It would be called "Arena". And, essentially, the basis of it is that two players will entire a ring- completely devoid of any environmental factors - and duel in front of an audience of other players.

There are multiple ways that this can be done. I ordain that there would be three "Sub-Modes" in Arena- one in which it's basically just a "fight-club" sort of situation (I'm thinking of calling it: "Dog-Pit"), wherein players can make bets with Steel as to who will win a particular fight. I think that this kind of mode would be one where a maximum of ten or twelve players can exist in a game at any given time. Two players enter a featureless, dirt-floor combat-ring, they'll fight, and whoever wins will be rewarded with a pre-set amount of Steel. No in-combat rules. The other players who are watching will gain or lose their "money" based on whether or not they made the right bet.
The rewards for winning fights should be relatively small, as well as the potential payout for making a good bet.

The second Sub-Mode of Arena would be "Tournament". It would take place on a much larger map, in a Roman-style coliseum/amphitheater (maybe a slightly small one). Tournaments should be "once-a-day/once-every-three-days" event that should include anywhere from 26 to 46 players. At the start of the event, two things will happen: the first is that a designated "Referee/Governor" will be elected amongst the highest-ranked players. This "Governor" will be given a "seat" on the map from which everyone can see and be seen.
The second thing that will happen is that every other player, aside from the Governor, will choose between being an observant and a combatant. There must be at least ten audience-members, and ten combatants, in any given Tournament. The audience members will be able to move about freely as their chosen characters, and be able to make bets amongst each other for a small amount of Steel, before the start of each fight.

When a player chooses to be, and is able to be, a combatant all Combatants are funneled into two teams. Blue and Orange.
Beneath the Arena will be two separate "Dojos" for each Team, where the Combatants can practice against each other before every Fight.
Then, brackets for all Combatants will be randomly generated, and the Fights will begin after a preparation period of four minutes. The brackets will be randomly chosen to fight at any given time.
Two Combatants, one from each Team, will enter the Arena on opposite sides of the oval-shaped fighting area. A countdown of ten seconds will pass, the gate that cuts the Arena in half will be lowered, and the fight will begin.
Executions only happen in the Finals.
At the end of each fight, the Victor will be judged by the audience, based on their performance and sportsmanship. Each audience member will vote "Yes" or "No", as to whether the Victor of the fight deserves to take the reward in Steel. Then, the Governor will be presented with the statistics of the vote, and will decide one way or the other, based on the vote itself as well as the Governor's own judgment. This is why communication will be necessary, so that the Governor can explain his/her logic before deciding.

If the Victor of any given fight is deemed honorable enough for their reward in Steel, the Governor will say "Yes", and the Victor will retreat back to their respective Dojo. The Loser of the fight, in this case, will be eliminated from the Tournament and given the option to become an audience-member, or to stay in the Dojo for the duration of the event.
If the Victor is deemed unsuitable or unfavorable by the audience or Governor, he/she will be forced to fight a volunteer from the audience with whatever remaining health he/she has. If the Victor wins a second time, he/she will be declared Honorable, and will be given the reward. If he/she loses, then the reward in Steel will be revoked, and he/she will be eliminated, while the Loser is drafted into the next set of brackets.
If a player wins one or more fights, then loses a Fight, depending on the Governor's decision, they run the risk of losing their accrued Steel.

The designated Governor will be paid a set-amount of Steel after every Fight.

This is meant to be a more theatrical kind of event, and as such, third elements will be brought into play. When the Tournament progresses an arbitrary amount, the Fights will be accompanied by environmental hazards. These hazards will be called Traps, and they will literally pop out of the ground at random intervals for the use of either Combatant. If the hazard goes unused for an arbitrary amount of time, it will recede back into the "floorboards". There can only be so many Traps active at any given time- said amount will increase the further along the Tournament gets.
These Traps are computer generated and cannot be influenced, beyond one of the Combatants using it to their advantage.

When the Semi-Finals start, the amount of Steel rewarded to the Victors, as well as the Governor, after every Fight is increased. Then, it is increased even more so during the Finals.

When the Final Fight ends, the Victor has the chance of being crowned "Champion". The Governor's decision as to whether or not the Victor deserves to be given the Title will, as always, be influenced by the vote of the audience-members. The Governor, as always, can go against whatever the audience decides.
However, unlike the previous instances, the Governor has something to lose at this point. After the Governor's decision, everyone in the audience will be given a decision to make.

They can vote "Yes" or "No", in regards as to whether or not they believe that the Governor's decision is sound. If the majority vote is "Yes", the Governor's decision will be moved forward, and the Victor (now "Champion") will be granted a hefty reward in Steel, in addition to the Steel that he/she has already accrued from the previous Fights, and the Governor will keep the Steel payment that he/she has been given after each Fight thus far. If enough people vote "No", the Governor will be forced to fight the Victor of the Final Fight.
If the Governor loses the duel he/she will be deprived of his/her Steel payment, and will be replaced by an elected New Governor. As well, the Victor and the Loser of the Final Fight will have to have a rematch once a New Governor has been determined.
The New Governor's decision, after the rematch, will be final.
If the Governor wins the duel with the Victor, his/her decision will be carried through, and everyone in the audience will be forced to pay the Governor a small fee in Steel. And, half of the Victor's total Steel-reward will be handed to the Governor, as well.

When a player wins a Tournament as a Combatant, he/she is given the Title of Champion for the rest of the Season, as well as the Steel reward.

And, finally, the third Sub-Mode of Arena will be... "Custom". Where the Host of the Arena will decide the parameters. Said parameters will not allow for a reward as high as that which can be achieved in a legitimate Tournament.

Any thoughts?