Too many maps splintering the player base?

So word has it that there is a winter and forest map potentially. Lets say that there will be. How will we make sure that we do not split the player base too much? The addition of maps into a small player base will caused a uproar of consequences. Should we have a map rotation system? Probably yes if we want to maintain the general player base.

Lets make it 1 map per week then it rotates.