A 2-4 fusion might work out nicely.
something liek this? i posted it some pages ago.

How about this? SE recommend new servers for the old ones so if you want to keep all your firend ls and all you just join the recomended server while anyone who wnats to change for whatever reason joins another one?

EXAMPLE

server 1 = Selbina
server 2 = Gysahl
server 3 = cornelia + wutai
server 4 = figaro + bodhum
server 5 = mysidia + karnak
server 6 = kashuan + palamecia
server 7 = trabia + melmond
server 8 = fabul + istory
server 9 = besaid + saronia
server 10 = Lindblum + rabanastre (recomended for europe)

wouldnt that be a almost perfect solution? almost like solution 2 from yoshi but still without revealing the severnames so everyone rushes for favorite servers?

SE just need to make an official lodestone post for it.