It's a fair concern but look at TTT Vanilla. Right now TTT MC, TTT Vanilla, and TTT Rotation all have 30+ players. You would think that TTT Vanilla would have hurt TTT Rotation, but they both seem to be doing well. I think it's possible to expand to 4 populated servers given that TTT has a large player base and each server covers different niches. I don't think it hurts to try. Definitely should close down TTT Anarchy though to avoid having too many servers at once. Maybe Loke and Xy can manage a TTT MC Rotation?