10 hints in 'Avengers: Endgame' at where Marvel is going next

• Warning: There are spoilers ahead for "Avengers: Endgame." 
• "Endgame" hints at appearances of several new heroes you may have missed while teasing some of its upcoming streaming shows on Disney Plus. 
• Visit INSIDER's homepage for more stories.

"Avengers: Endgame" may not have had any end-credits scenes to tease the future of the Marvel Cinematic Universe, but it did offer a lot of teases throughout the three-hour film about where Marvel is heading next. 

Marvel's 22nd entry into the MCU set up a bunch of TV series, movies, and a few new characters we have yet to see on screen. Keep reading to see what's in store for our Marvel heroes — and antiheroes — now that we're out of the "Endgame."

Okoye mentions some tremors under the Earth. Is Namor coming?

This one was a bit unexpected. Early in "Endgame," after the five-year time skip, Black Widow is discussing world events with Okyoke and she mentions some tremors off the coast of Africa. Black Widow asks what Okoye is doing about them and she says nothing because they are earthquakes, natural occurrences. 

But are they?

Some fans think the brief line was hinting at superhero and sometimes villain Namor. One of Marvel's oldest characters, the merman from Atlantis is essentially the MCU's version of Aquaman. In the comics, he's often referred to as the first mutant. Yup, Namor had some run-ins with the X-Men over the years, which Disney now owns.

Universal Pictures has the rights to do a solo Namor movie, but Marvel Studios may be able to include the character in another movie. It's similar to what Disney/Marvel have been doing with the Hulk in "Avengers" and "Thor" outings. Since Okoye hints at tremors under the ocean, perhaps we'll see Namor hinted as part of a future "Black Panther" movie. Marvel Studios' president Kevin Feige has said Namor "could" make an appearance in the MCU.

Clint Barton hints that his daughter may be the next Hawkeye.

At the film's start, Clint (Jeremy Renner) is seen showing his daughter, Lila, the correct way to fire a bow and arrow and she already seems like a pro. Are we looking at a future superhero? Clint even refers to his daughter as Hawkeye. 

In the comics, Barton does mentor a future Hawkeye named Kate Bishop. The biggest difference here is that she isn't his daughter. It seems like the MCU may be planning to make Lila a version of Bishop.

You can read more on Kate Bishop here.

One more thought on Hawkeye: Barton's past could come into play in his own Disney Plus show.

After his family vanishes in the snap, Hawkeye becomes a ninja assassin called Ronin. We see Barton killing an entire group of men in Tokyo and hear about other "work" he's doing with a Mexican cartel. Are we just going to pretend that never happened?

Now that Barton's reunited with his family, his life as a hardened assassin doesn't just disappear as well. Before her death, Barton even told Natasha that he did some unspeakable things. I hope Clint wore a really good mask to hide his identity as Ronin because the past five years may come back to haunt him and his three young children.

This may be something that's directly addressed on the reported Hawkeye Disney Plus streaming show.