Disney keeps using old ride systems to make Iron Man rides (Star Tours & Rockin' Roller Coaster.) I don't think we'll see one like Iron Legion show up... That said, there will be something Avengers coming to Paris. So, who knows.
Wasn't that already shown with the stunt show debuting this year?
DCA has been the only one to explicitly mention The Avengers while HKDL is pushing Iron Man and Ant Man, with Paris pushing the Avengers stunt show and Iron Man RnRC turnover.
Back to JP, I expect we will see something more like a remake of the River Adventure more than a new ride, atleast for now.