Just found this and thought I would share.
Source:
Official N.A. Lineage II site(!empty($user->lang['QUOTE'])) ? $user->lang['QUOTE'] : ucwords(strtolower(str_replace('_', ' ', 'QUOTE'))):
Character Transfers
It is STRONGLY possible this service will be offered either at the close of Open Beta or shortly after retail. Details are not finalized, so don't contact our support team asking how you can transfer characters. If it is implemented, most likely it will be for a small price, however we might offer 1 free transfer to Open Beta participants for putting up with us through the betat period. But also consider this is not a worry-free solution. If your character's name is already taken on another server, we will not be able to transfer your character to that server.
Hope that help clear up this question / issue.