Terminator 2 3D will be closing October 8th to be replaced by an 'all new live action experience based on a high energy Universal franchise.'
It's not Sing or The Walking Dead, so just stop that for now.
T2:3D has been earmarked for replacement over the past 7 years. Several projects have been considered including The Walking Dead haunt found at USH and an original plan of an Avatar attraction before Disney told Cameron they'd give him a Potter-like land (not just one attraction).
We believe the replacement attraction will be another live action show (duh) similar to T2:3D using modern projection systems, new effects, and bigger stunts. Universal and WB are bidding to distribute the next few James Bond movies and an attraction in a theme park could be part of that proposal. Additionally Universal has it's own James Bond-like franchise, Jason Bourne, that could fill in if the right negotiations fall through.
The new replacement attraction opens in 2019.