I have a nice idea about future assassin's creed game. Last Assassin's Creed Games were boring and We need something completely different.
SO here is my Idea:

Set in Ancient India During Maurya Empire (321–185 BC)

A Visha Kanya (Poison Girl) as an Assassin

Who were Visha kanya?
Visha Kanya were used by kings to destroy enemies. The story goes that young girls were raised on a carefully crafted diet of poison and antidote from a very young age, a practice referred to as mithridatism. Although many would not survive, those that did were immune to other poisons and their body fluids would be poisonous to others; sexual contact would thus be lethal to other humans.There also exists a myth that says a Visha Kanya can cause instant death with just a touch.

Visha Kanya was mentioned in the ancient Indian treatise on statecraft, Arthashastra, written by Chanakya, an adviser and a prime minister to the first Maurya Emperor Chandragupta (c. 340–293 BCE).

Ancient Greeks who invaed north India in search of Apple of Eden and Assassins with help of Maurya Defend this Apple of Eden.

Key Characters:
ChandraGupta Maurya: was the founder of the Maurya Empire and the first emperor to unify most of Greater India into one state.
Chanakya: was an Indian teacher, philosopher, economist, jurist and Advisor and prime Minister of ChandraGupta maurya
Visha Kanya: as an Assassin
Greeks as templars

Why I liked this setting?
Because I think we need something different. Last Assassin's Creed games were boring and with similar setting and nothing new. by the way Assassin's Creed Black Flag was last game which i enjoyed playing.

I hope you guys like this idea. and SORRY FOR MY BAD ENGLISH