Hi Elizabeth,
I am so excited for your trip and hope you have a wonderful time with your boys!
While Toontown closing is a disappointment, I know there are still lots of fabulous things for you to do with your sons. Toontown had one smaller roller coaster, photo opportunities with characters and small play area to let loose with little ones. The characters have been relocated throughout the four parks and you can check the park guides as to where they will be. Goofy's Barnstormer Roller Coaster will not be available but there is hope it comes back with the new plans.
You do not mention the age of your little one so I will list a few and then email us back if you would like specific rides for your youngest son at Magic Kingdom.
Fantasyland
Buzz Lightyear
Monster, Inc. Laugh Factory
Pirates of the Caribbean
The Jungle Cruise
The Magic Carpet of Aladdin
Plus there are other attractions throughout the other three parks your son will enjoy including the new
Disney Junior-Live on Stage! in Disney's Hollywood Studios.
Have a magical vacation!
Beth