3 Kids in 2 rooms….

How would you place 3 kids in 2 rooms… we have a 6YO girl and a 2YO boy…. I kind of want the baby (not finding out sex) to have their own room for the sake of naps and sleeping. But I’m sure my oldest will eventually want her own room down the road… so do I put the oldest together for now and then put the 2 youngest together down the road when the baby is a bit older? Or go ahead and keep the younger 2 together from the get go…. The one room they have for sharing is a fairly large room with 2 closets.

Orrrrrr…. Do we put them all in the large room and use the other room as a play room?

I’m at a loss… idk what to do.