As most people here will tell you, having a great trip is a combination of some conflicting ideas.
You will want to plan, probably more than you've planned for any other vacation. You will probably want to plan at least some table service dinners--(And,with the times you're thinking of, you may very well get free dining!!!) Your sons might enjoy some of the many character meals, and/or they might enjoy eating in Sci Fi diner (you sit in a "car" of a drive in movie theater, while Sci Fi (but absolutley not scary-- think Woody Woodpecker in Space) movies play.
Those dining reservations (ADRs) can be booked 180 days before you arrive, for up to 10 days of vacation. So you'll want to do some homework there.
You'll also want to plan out which Fastpass+ you'll want. FP+ is a FREE service by Disney. It allows you to pre-plan an hour's time span and make sort of a reservation-- the FP+ line will be MUCH shorter than the regular line. It was changed from the old system a few months ago, and there are lots of misconceptions about it. Probably the best source of advice I've seen is here:
http://www.disboards.com/showthread.php?t=3143281
Of course, in order to to that, you'll want a good idea of which rides your sons (and you) are likely to love. You'll want to check them out online,then go to youtube to see what they're actually like. For what it's worth, based on my own kids, here are ones I think you should look at:
-Magic Kingdom: Big Thunder, 7 Dwarfs (that's new, we haven't seen it yet), Splash Mountain, Pirates of the Caribbean, Haunted Mansion, Buzz Lightyear, Mickey's Philharmagic, Monsters Laugh Floor, Indy Speedway
-Epcot: Soarin', Test Track, Mission Space (green for us), Malestrom, Spaceship Earth, Turtle Talk
-Hollywood Studios: Toy Story Mania, Rock n Roller Coaster, (Tower of Terror??-- NOT for us!), Great Movie Ride, Star Tours, Indy Jones, Lights Motor Action Stunt Show
-Animal Kingdom: Kali River Rapids (you WILL get wet!!), Safari, Expedition Everest, Dinosaur, Festival of the Lion King, Finding Nemo
In your shoes, I would give the boys the list, send them to Youtube, and have them order the list in each park do "favorites" "good" and "skip." Since you're not going for a while, it can be a summer project.
OK, now all that conflicts with the idea that this should be a vacation. So, as much as you're going to do tons of planning, you also need to realize that you're not going to be able to see it all or do it all, no matter how long you stay. So you'll want to keep in mind the best piece of advice I ever got concerning Disney: No one ride, meal, show or attraction has the power to "make" your vacation. Your family's fun is only as good as the least happy person in your group. So if your 7 year old is hot and miserable and wants to go back to the resort and swim, your family will be happiest in the pool. Whatever you had planned will still be there next trip.
Some people get so caught up in the planning -- it really is a lot of fun!-- that they refuse to toss the plan to stop and enjoy the moment. It's a delicate, but important balance.
in her home. 
. Check out sit down but also counter service. 
Dis-Friend 
Have Fun Planning. 
