Tracked down the rumor's source, at least publicly, as far as I can tell. It was mentioned on the
latest episode of Universal After Dark podcast by
Christopher Ripley.
Discussion starts at 42:30:
His other rumors are hit and miss from the episode, so take with giant grains of salt of course. (Although I wouldn't mind a VR experience at CityWalk, which he talks about after the Shrek replacement talk, but sounds like he doesn't know where it would go, unless Element won't be doughnuts.)
Okay, I've spent a bit too much energy on this rumor for now. If anyone hears about it going forward, be sure to ask their source. Anything other than this podcast episode and we may actually have something. Otherwise, I'm still leaning towards SLoP personally. But I like to keep my ear out for all possibilities!