WARNING: The following article contains spoilers for Marvel's Ant-Man and The Wasp, in theaters now.
Ant-Man and The Wasp may be Marvel Studios' lowest-stakes adventure to date, but that doesn't mean its ending won't have long-lasting consequences for the state of the Marvel Cinematic Universe.
While most of the film is a suped-up game of cat and mouse, the film's final moments make good on a lot of the promises teased throughout the film. There's a lot going on here, from the return of some long-awaited characters to some unlikely allies.
The Quantum Realm Can Be Explored
The ending of Ant-Man and The Wasp proves that a major revelation from the 2015 film is totally possible: The Quantum Realm can be explored, and returned from. From the jump, this movie makes clear that Janet Van Dyne is lost somewhere in the Quantum Realm, and it's up to Team Ant-Man to journey there and retrieve her. But this doesn't actually happen until the film's closing moments, when Hank Pym heads solo into the unknown and retrieves his wife, who's been in there for thirty or so years.
With Scott Lang having gone into the Quantum Realm and returned in the first film, and Hank Pym safely returning with his wife in this sequel, it's safe to assume that traveling into the Quantum Realm, with the right preparation, can be totally manageable and, given Marvel Studios president Kevin Feige's recent comments, probably something we'll see a lot more of down the line.
Ghost May Be An Ally
Ghost may have been marketed as the main baddie for Ant-Man and the Wasp, but her dynamic with Scott Lang and Hope Van Dyne changes in the third act of the film, not to mention once we learn that she's really just suffering from a wild case of quantum phasing, and she just wants the pain to stop.
Ghost (Ava) has a plan to syphon energy from Janet as she returns from the Quantum Realm, in hopes of stabilizing her own make-up. Of course, Tema Ant-Man is convinced this won't work, so they thwart her attempts at the last moment, fearful that curing Ava could tear Janet apart.
Of course, Janet steps out of the Quantum Realm ship, sees Ava, and seemingly heals her affliction (but we'll get into more of that in a bit). With Ghost's pain apparently gone, the ending sets up a potential ally in the once-villain, something that subverts Marvel Studios' traditional hero/villain dynamic in an interesting manner.