A simple but nice thing they could do atm is add more oGCDs to use for the Bahamut/Phoenix phases. The easiest way to do that is just give us more Aetherflow stacks to spend, or reduce the cooldown.
Also at this point they should just bake in Aetherflow to Bahamut/Phoenix because that's the only time you'll ever press them. There's no reason for Energy Drain/Siphon to exist when Aetherflow doesn't relate to anything anymore.
