As Roque Rightly pointed out, how the heck is mergeing s51 and s53 help in "server balance" .
Furthermore, what you claim to "promote a good quality game environment", frankly speaking After merge, it will degenerate to Shu kicking Wu and Wei's ass in all events, which will lead to most active players from both Wu/Wei leaving the game after they lose their patience at the monotonous drag S51 gameplay will become.
I hope that you please consider everything before merging s51 and s53.
P.S. Oh!! if $$$ was the criteria for this merger, then I totally understand