I can understand why they built iron man, they needed a replacement for autopia quick, a unique ride and a new anchor for stark expo, they couldn’t build quinjet till DCA was ready and they wanted autopia gone because it has by far the worst cast requirement to guest ration in the park and it wasn’t even close
The decision made sense then but now they’ve kinda boxed themselves in because nothing will fit in that section that reasonably makes sense to put in that’s not just a copy of one of the two rides that immediately borders it
As for a journey clone that would be fantastic but the space is not possible, all the journey style rides have enormous footprints because that ride system can’t turn effectively in short spaces, they may have just enough room if they ripped down the existing grizzly gulch but there is no reason at all to do that
And yeah I had also heard tron was designed as it is because Chinese guests do not like facades hiding shoe buildings and not knowing what the ride is before they get on it, that would tend to lean towards a log flume but ehhh