Hi Kelcie,
If your FastPass+ selections are already made, that can only mean one thing...your trip is ALMOST HERE! I bet you're bursting with anticipation, and I hope that you're ready for an amazing vacation that will leave you with wonderful life-long memories!
While I do like to bunch our FastPass+ selections fairly close together so that we can maximize the FastPass+ service and use as many of them as we can in a day, I don't think that your current selections necessarily need to be changed. With multiple shows at Disney's Animal Kingdom Theme Park that don't usually run past the late afternoon, those hours between your Kilimanjaro Safaris and Kali River Rapids FastPass+ return times could be used to watch
Festival of the Lion King,
Finding Nemo - The Musical, and/or
UP! A Great Bird Adventure, which are all fantastic. Don't forget, too, that you can use the My Disney Experience mobile app to make edits at any point. You could even pull your phone out while you're in line at Kilimanjaro Safaris and check to see if there is an earlier time available to move your Kali River Rapids FastPass+ selection up a bit.
Whatever you decide for your afternoon, I'd encourage you to arrive early to the theme park. You'll find the shortest lines of the entire day during the first hour or so in the morning, and you can often experience several attractions then with very little waiting.
Thanks so much for stopping by the Disney Parks Moms Panel, Kelcie, and please feel free to keep your great questions coming! I hope that you have a truly magical vacation!
Missy