This is just knee-jerk reaction. Wait for F2P and then see if population will increase or not. F2P is fairly popular in AP region. For all we know, population may explode.
Rather than merge and then create new servers later, better to wait for results of F2P. Once the results stabalise, it is not too late to decide to merge or stay as it is.
Please, tell me how this is a knee jerk reaction. Guild Wars 2 you say? Population has been barely anything but light the last 30 days. When did GW2 come out? Like, a week ago?
The server was only good between opening and Diablo III. Ever since then the population has had a massive decline.