TD can still be fun. Urn is right that PVP has its issues - meta-sets, Chronus users, lags, exploits etc -, but with a decent team, you can still have a good and entertaining gaming session in DZ. PVE content is a bit boring for those who played the game all the time, but if your have been away for a year, there is new PVE content for sure. Do you know West Side Piers and Restance already? PVP is probably hard with your old gear set, but in PVE, you surely have a chance. Above that, there are many old veterans who will gladly help you with the new legendary missions etc. I would try it if I were you.