Funnily enough, I could definitely see Merlin wanting to build a Toy Story Midway Mania attraction at Towers as well. I know a pure screen based dark ride attraction would be looked down by many of us for being cheap, even worse than what many of us feel for GG or even Charlie to some extent.
However, being a great interactive ride with blasters and 3D effects would be a win for many guests and would make up for the loss of blasters on Duel and i haven't even thought of what theme it could be. I know this is going off topic a bit but I wonder where they could build another dark ride on the park? Maybe.if they want to be cheap as possible maybe they gut out the dungeons building entirely and place the attraction in there.
Yeah, would mean losing the boat ride system in there after many decades though given it is older than the ride system on Duel, it looks like an easy target for removal though I suppose operating and maintenance wise might be a lot easier than Duel's ride system despite the age. Anyway, on the topic of Duel, I do suspect that Merlin are aware that losing the blasters might not go down well with some guests and if feedback proves to be the case with a revamped Haunted House them you can expect Merlin to bring forward interactive dark ride of some kind for the park.