Never played FFXI but i don't fancy Summoner's in this game either.

My take on is summoners shouldn't have egi's with them all times and instead summons should be tied to limit break (of summoners), but for that the limit break would need to change, they could be personal instead of group and you could choose which limit break to use (you "equip" it before battle). When the gauge is full you just call a summon, they do his glorified thingy and they're gone, in the meantime SMN's do their spells like a regular mage.

Limit breaks would change for everyone ofc, every class would get their specific limit break. Anyway would this work here? Probably not, a lot would need to change and i don't see it being done or even working in the game, but this is how i would have liked it to be in the 1st place.