^Well it has been suggested that each Marvel attraction is unique to each park - characters only exist in one location. In other words, there will be an Ant-Man attraction in HKDL it will not be replicated elsewhere.
However that argument falls flat if RnRc becomes an Iron Man coaster, as HKDL has the Iron Man Experience.
Maybe the 'character rule' refers to just the attractions themselves. Which makes more sense - let's face it, there'd be a lot of disgruntled guests if you can only see Thor at DCA.
Wasn't there also a rumour regarding a possible Spider-Man rollercoaster, due to Disney filing a patent for a swinging rollercoaster?
That has been rumoured, yes. Not sure what the plans are for that.
It can't go in WDW (for now) as there's already a Spiderman attraction at Universal - plus the other contractual restrictions.
DCA is unlikely as the E-Ticket is supposed to be Avengers themed.
There's not been much, if any, talk of Marvel at TDL.
HKDL already has Ant-Man and Iron Man.
WDS seemingly only has plans for a theme overlay on an existing coaster.
Which leaves SDL. A likely candidate, but not any time soon.
Odd really. Maybe they were just filing a patent to prevent another park using a similar system?