The original sitcom aired on the Disney Channel 2001-04.
The followup show was announced at Friday's D23 Expo in Anaheim, Calif.
"SURPRISE!!! I've been trying to contain this excitement for a loooong time while this has been in the works! I am beyond excited to be home again, back with my girl ...and into her 30's #bringbackbutterflyclips #lizziemcguire #thisiswhatdreamsaremadeof #lizzieforpresident #DisneyPlus #D23Expo ..... Also, If you needed yet another reason to get Disney+ ....the #lizziemcguiremovie will be living there!" Duff, 31, wrote on Instagram.
Disney+ is scheduled to go live on Nov. 12.