Only a year after a new Star Wars land opens at Disneyland, guests at the neighboring California Adventure Park will be able to visit another expansion, featuring Marvel superheroes. Disney officials had previously announced plans to build an expansion at California Adventure Park, based on the Marvel characters and located near the Marvel superhero attraction, Guardians of the Galaxy: Mission Breakout, which was overhauled in May. But Disney officials have been tight-lipped about any more details, except to say in a news release last week that the project will open in 2020.