if they do it whit 3-4 servers it might work, but if they do it whit more than that it will make holy comunity part destroyed. you wont know anyone you play whit, people start acting like total idiots, flaming and all sorts of crap will begin. getting exploiters, hackers and bots banned will be even harder cause most people wont report cause they literaly cant rember who and what server the person was from.

easiest solution would be to make some pvp gear buyable whit credits at lvl 50, so that new 50s would not have to feel totaly useless.