It's funny that you say that...I've been thinking a lot about that with this trip. Mine are 11 and 9 - still young but definitely not littles anymore. DS11 doesn't want to do Jedi training for the first time! It's bittersweet - happy not to have to deal with sign up but sad! He may change his mind, of course. DD9 didn't want to do BBB this year either, and we're pretty cut back on princesses! Just Mulan, really. I told them we were cutting back on character meals, which they love, and they wanted to keep CP. I have an 'Ohana breakfast scheduled as a surprise, but it feels funny not to have a princess meal! Even DS loves them - he gets starstruck, lol! It's been so fun to plan with them, since they're so into it, but still bittersweet for mama to leave one stage for another!

I'm getting weepy just writing this!
I've often said to DH that one of my favorite things about Disney is how it changes in different phases of your - and your children's - lives! Especially with our kids - there are old favorites but always new things each and every time!
And not to sound sappy but to echo what
@figmentfan423 said - enjoy every phase!