What I want to see in FFXIV.

More definition between 'classes' and the roles they fill.
New classes, particularly a summoner class that is NOT a support class. (SUMMONERS ARE NOT JUST SUPPORT GDI!)
Missions and quests that REQUIRE combat on the players part. A weaver should NOT be able to finish the story solo.
More story content.
More cutscenes outside of the main story line.
More traditional FF-type lore in the game. Chocobos, Moogles, airships, etc.
Less gimping because of fear of imbalance. Some classes will (and should) be stronger in certain areas than others.
Less mage hate. Seriously, everything SE has done to mages in their MMOs suggests an irrational fear or hatred for any and all non-melee classes.

What I don't want to see in FFXIV:

More FFXI.
More WoW.
More grind.