3 Stage Rotations?

I'm going to bet this will happen eventually, but do you guys think we'll eventually have 3 stages in rotation at once? If so, when will it happen?

I'm thinking we'll need to get to 10 stages before they start doing 3 stages in rotation. Which sucks because it really is better with 3 over 2. Although I suppose you can play more than 2 stages each rotation if you switch between Turf War and Ranked Battle a lot. (which I guess I tend to do)

I think 3 stages will be in the rotation after we can the last 2 regular stages. I hope at some point everyone should be able to pick what map they want though.