Nah, pretty much stuck where you are until they officially allow for separate case transfers.
But Ragnorok is pretty nice, 90% of that server is gonna be active all the time. =D

See, all these other servers are supporting deadweight characters that are inactive.
So if the characters that are now on Aegis aren't too high, you made a good choice just re-rolling to Ragnorok~

What ever you choose, have fun.