So this is option 2:

②A + B - X ⇒A World to merge with B World, except people that would like to move are able to choose a different World
So people cried about something becoming unbalanced..yet they're praising that things will now be unbalanced? lol. You do know if they merge a small world with an already decent sized world people still can get separated, much more likely than just allowing people to change freely like you know, they went with option 4 for that reason? Since you know, if a server already sits at 1k and they wanted to boost that number to say 3k per world, people still will be separated because they'd have to account in the people who will resub by march 1st.

So in the end, nothing really changes.