FWIW, I seem to recall them mentioning story-wise the ride vehicles are able to make jumps between dimensions etc., so a teleportation effect in a preshow wouldn't be needed.
And while I know it's wishful thinking and all, the preshow from Cosmic Rewind is not something I'd want any attraction to replicate, because IMO...it's the worst modern day preshow Disney has done so far. And a factor being it revolves around the teleporter effect which is executed so poorly, it's a total whiff and waste of time. It's not what you want for an attraction where there's a general sense it needs to deliver.