Balmung, Gilgamesh & Leviathan all need to be on different Datacentres (Aether, Primal & a new one) with the rest of the worlds spread across the Datacentre in a way that balances load. Primal is too overloaded so I can only imagine what Aether is like, having those too overloaded worlds on it.

Effectively, a complete new set of servers are needed. It'd be a chance to have a new East Coast USA Datacentre too, if it was beneficial.