Are you older kids boys or girls?
Boys.. if they like fire and exposions like my 4yo, they might like Indiana Jones. My DS cant wait to see that again. We didnt have time for it over THanksgiving, and now thats all he says " we didnt see Indiana Jones".
Girls.. Storytime with Belle in the Fairy Tale Garden. They pick kids to be in the play. My daughters were Luminere(sp) and Mrs. Potts when they were 4 & 5.
There is Flights of Wonder in AK. Its a show with like birds. I know Tarzen Rocks was supposed to close, but Im not sure WHEN. They would like that.. singing, dancing, rollerskating monkeys. Its tough to be a bug is a 3-d show. Some people say it could be intense for little ones. But mine all love it. Take them to the Honey I shrunk the kids Movie Set playground in MGM. Its really cute in there and the kids love it. Make sure they stick their hand in the dogs nose and let it sniff them

In MK, they just opened another play area for smaller kids, called Pooh's Playful Spot. Some water fun, Pooh's home in the big tree, things to climb on, a soft rubbery cushiony floor.
IN Epcot, one of our favorite things to do in United Kingdom is listen to British Invasion. They look and sound the Beatles. Inside is a kidcot station, and a character meet & greet with pooh characters and sometimes Mary Poppins. This is where we saw rabbit for the VERY FIRST time in 11 trips!! Outside, we sit and listen to the music. There is a hedge maze around the gazebo where they perform. The kids love running through that while we enjoy the show.