Everyone has covered the stuff I care about most (the stuff I've omitted I don't disagree with, just don't feel strongly about), so:
Quote Originally Posted by WarZidane View Post
  • Moogles
  • Female party member
  • Cities to explore (sorry XV, you were weak in this regard)
  • Fantastical environments. This is actually one of the big things from the admittedly only 4 minutes long first trailer. I really want something more than just European medieval with magic, European medieval is boring.
Yep.
Quote Originally Posted by Psychotic View Post
Game: don't sell a half-finished product and intend to fix it later with patches and DLC.
Yep.
Quote Originally Posted by JJ Strife View Post
-Huge and varied, non-linear world. It doesn't need to be full Skyrim-style open-world. But just something fairly open where you need to explore a lot and can backtrack to previous locations. None of that FFXV "and now the rest of the world becomes off-limits, unless you want to time-travel into the past" silliness. Something like the world of FF12 would be good. Constrained and segmented but open and non-linear.

-Mini-games! They've really slacked on this in recent times. The thing I loved in the PS1 era is how they all had these huge mini-games that would almost span the length of the whole game, and have important benefits for the main game too. So Chocobo breeding/racing in FF7, card game in FF8, Hot n' Cold in FF9. We need something like this to come back. They haven't done anything like this really since Blitzball in FFX. Battle square/ hunts type thing doesn't count. It has to be something other than just more battles.

-A love story! It's been a while since they did a good romance. FF8, FF9 and FF10 all had really love stories, and then they just did nothing for several decades. Nothing in XII, nothing in XIII, and then an almost trolling provocation of a non-romance in XV.

-No time travel, no alternate dimensions, no fighting against abstract concepts. The number of times where injecting metaphysics into a story actually improves it can be counted on one hand.
Yep. Although I will say FFXV had some absolutely awesome minigames, especially the fishing. Best fishing game of any game, ever.
Quote Originally Posted by Del Murder View Post
  • Some varied locations not just different varieties of the medieval town.
  • Non-male and non-human playable characters.
  • Humor, wit, whimsy.
  • Meaningful gear upgrades that require some choice on what to equip rather than just using the weapon with the best attack power with 1-2 accessories that are situational only on the hardest battles.
  • Some form of the job system, even if it is just that the characters are stronger in certain areas (healing, magic, tanking, etc.).
  • A charismatic villain who gets some real screen time and development (this one seems hopeful). Also some meaningful side villain characters.
Yep. Important to note that the villain with loads of screen time should be the final boss, not just a main villain that is followed up by some boss or two I don't give a rat's arse about. I'm looking at you, Necron/Braska's Final Aeon/Yu Yevon/Orphan. Even a little of you, Ultimecia.
Quote Originally Posted by qwertysaur View Post
Gilgamesh making an showing is always fun.
Yep.
Quote Originally Posted by maybee View Post
  • A evil tree
  • Turtle sage
  • Also most importantly strong female characters. If FFII can manage Maria and FFIV/FFV can manage Rydia and Faris then there's 0 excuses. None. Zip. Zero.
Yep. Although I will say that FFXV aside, I don't think this has been all that lacking. Lightning/Ashe/Penelo/Fran/Fang/Reynn and even Serah are a hundred times more developed than Maria is. Some of the FFXV girls were great too, shame they weren't permanent members of the playable cast.

I'm confident they will get a lot of all of the above in the game. I really, really hope that evil tree and turtle sage aren't left out, though.