Big Boy room

JK

We’re planning on changing my 2 yo’s room over to a big boy room for Christmas (he’ll be 3 in Feb & new baby is coming in May). I want him to be able to choose what “theme” he wants (I’m guessing Dinosaurs or some sort of vehicle(s)). I guess I’m just a little worried about him outgrowing or changing interests quickly. I just think about his favorite things a year ago are of no interest to him now 😝. And I’m not willing to redecorate every year or two. Any thoughts or any personal experiences?