At the pace this has seemed to be going, I wouldn't be surprised. We've heard literally nothing from Universal since T2 closed in 2017.
Disney has Ratatouille next year though. Or at least they are supposed to unless it got pushed all the way back to 2021, but I find it hard to believe it got pushed that far back. Late Summe/Fall I can see, but not 2021.
The worst part is that it probably could've been done in 6-9 months tops. From all reports, once they closed this thing originally, they just let it sit there with little to no work going on for quite awhile.
I believe
@Legacy meant they don't want another new attraction to bomb with guests like F&F, not that it's too similar to F&F.