While team-up movies like Avengers: Infinity War are often the best part of the MCU for fans, the goal for many actors is leading their own solo superhero movie. However, one Marvel actress isn't interested. Evangeline Lilly who plays the Wasp recently admitted that she's not really looking for a Wasp solo movie down the road, as she feels the interaction between her character and Ant-Man is part of what makes Wasp special and fun for her. According to Lilly...
I like the MCU and I'd like to stay. But I actually don't like the idea of a Wasp standalone film, because Ant-Man and Wasp, since the very beginning in the comic books, were always a team. And really, they're kind of one of the only proper and true teams in the MCU, otherwise it's mostly a lot of individuals. And I love the team aspect of it, I love watching the interplay between Wasp and Ant-Man and Ant-Man and the Wasp. For me it's the most fun part of the film.
It's true that Ant-Man and the Wasp have been a duo for a long time in the comics, while most of the rest of the current MCU roster is made up of solo heroes who occasionally team up. That's not to say Wasp hasn't been given solo adventures in comics, but they do seem to be more the exception than the rule. Evangeline Lilly told a crowd at Boston Fan Expo (via ComicBook.com), that she's fine with the MCU imitating that strategy on the big screen.
The chemistry between Scott Lang and Hope Van Dyne was one of the highlights of the first Ant-Man, even before Evangeline Lilly got to become a superhero herself in Ant-Man and the Wasp and it only got better from there. Lilly herself seems to feel that without that interaction something in her character would be lost.
Of course, that's not to say that Evangeline Lilly is entirely against separating her character from Ant-Man under the right circumstances. She does reveal one scenario under which she'd be more than happy to leave Paul Rudd behind.
So I don't love the idea of breaking them up --- except if there was an all-female Avengers film. Then I'm in.
Seeing an all-female version of the Avengers would be awesome and the Wasp would be necessary. The character was a founding member of the Avengers in the comics and would certainly belong alongside other female MCU heroes like Black Widow and the forthcoming Captain Marvel.
Of course, at this point, when we'll see the Wasp again at all is a bit up in the air. Hopefully, everything will be fine once Avengers 4 is over.