Simplified - Less gear slots, less aggro types, less materia, simpler monster A.I, etc. In-depth battle mechanics are replaced with things like gear-dye and housing. Can't even have a decent character limit on the forums.

Fluid - FATE & Duty Finder is everything. Through claiming and instance mechanics, competition has been removed. Gone are the days of waiting for anything (unless you're a DD in Duty Finder).

Casual - Effortless progression. Enemies are 5x larger but 5x easier. Ease of game-play actually breaks illusion of achievement, even for casuals. 99% of the open-world content can literally be beaten with a chocobo.

Hardcore niche - Item level, cross-class, and a few difficult fights. It's hard to say how difficult it will get, but there is definitely a desire to have something in there for the hardcore players. PvP included in the meantime.

Discuss!.. because this is the forums... not shout chat.