I kinda wish that SMN would just get disconnected from Arcanist and Scholar entirely. Rework it completely and away from being a pet class DPS. Instead build around expanding the demi-bahamut system to include the other primals. Could even work it so that you cast primal themed spells (I dunno, summon ifrit's claw to launch a fireball, summon Garuda's wings to do a tornado pbAoE, summon Titan's fist to do a line AoE, etc) to build up aetherial "charge" with that primal so that you can summon its Demi version to cast their more iconic abilities and then they disappear.

That in my mind would be cooler then the egis we have now (that I just see people glam to carbuncles anyways).