I hope summons replace the 2hr abilities and this
I'm hoping for more of a "Every Character gets a summon, but you must pick only 1" idea, like ffxiii. No class per-se, but maybe make Ramuh have abilities that enhance pugilists, Ifrit enhance gladiators, etc, etc.
while the idea is cool, and flavor wise I love, it'll be great until 2 things happen:
1- Everyone picks the same summon (if they offer Odin or Bahamut expect this to be a reality)
2- One Summon ends up clearly being the best, and with no way to change their lame summon, everyone without it QQs
Now there are ways to work around this (like maybe u can change your avatar every week or something, or in a mog house etc but only have one active), but it's a potential slippery slope. Could be well worth it if done right though.