i don't see why NA/JP wouldn't move to ragnarok.apperantly i already know of many going to move there.
there are various reasons for them.most of them i hear are about having a fresh server to start with.
some are saying they want to start a new community on ragnarok before 2.0 hits.
but let's be honest.most opinions will never be heard, because of most players just not using any kind of fansite/offical forums.

the future of ragnarok is totally up to the players joining it, and actually i don't see it failing.i allready know from over 20 ppl on my server that will move.and there is probably many others that i don't know of.and that doesn't only concern my server.

only time will tell how ragnarok will do.and still in worst case we can change servers or get merged with another.
to me for example it's only important to move to a server with a stronger EU community.because on my current server there simply doesn't exist a real EU community.

all predictions.i think ragnarok will do fine