If you are talking about the tour, it was announced that Lexie DeBlasio and Maya Goldman will be sharing the role of Cindy Lou.
The rest of the kid ensemble includes: Guy V. Barfield II, Albert Santiago, Kylie Liya Goldstein, Morgan Hecker, Carly Maitlin, Spencer Milford, Hallie Anne Richardson, Emily Sheppard, Terrance Thomas and Janelle Viscomi.
I have no idea if any of them have Annie ties.
Will Grinch be playing B'way again? I have no idea...