Seems to me that Kate didn't take any of the kids on trips after the show was canceled. Now that the show is back on, the kids get to go on trips. Of course they will excited. Heck, you can take them on the trips w/o the cameras and they still will be excited.
And what's in store for the kids? She said they'll be "taking some fun trips and having some great adventures. They're very excited."Source: