I want them to scrap the Egis entirely and replace them all with Demi summons. Have our Carbuncles be our primary pets and you can channel the Aether of whichever Primal you choose to temporarily turn them into a Demi version of those summons. It'd make the class actually feel like a summoner, instead of a DoT mage with a pet and being able to properly summon something impressive every two minutes.

Like, make Ifrit a single-target melee focused, as he already is, Titan can be more about AoEing and Garuda can be single-target ranged focused. This way, Titan could actually see some use in dungeons, because even at max level, you don't really need a tank pet, unless you're fighting something that grossly overpowers you.

Hell, make it a rotation based thing where each of them last 40 seconds or something, so it totals out to two minutes and summoning all three of them allows you to summon Demi Bahamut. Then you could mix Dreadwrym Trance with summoning Demi-Bahamut to pump out some real damage with the instant-cast Ruin IIIs.