Avengers 4 LEAK: Does THIS prove Captain America and Black Widow go back in time?

WARNING POTENTIAL SPOILERS FOR AVENGERS 4 AHEAD

Last week official concept art from Avengers 4 leaked depicting the original Avengers, Captain Marvel and other superheroes who survived Thanos’ genocidal Snap.

But what’s particularly striking are the changes to a few characters who appeared in Avengers Infinity War.

While Hulk is wearing clothes, suggesting he’s become Professor Hulk, Captain America and Black Widow’s changes are the most intriguing.

The pair have been on the run since the events of Captain America: Civil War, with Cap growing a beard, longer hair and not wearing the stars and stripes on his uniform.

Meanwhile Black Widow has dyed her hair blonde, but in the Avengers 4 concept art she has red head again.

Also Cap is back in his costume, with a neat haircut and clean shaven face.

Now Avengers 4 set photos did show Cap in his Battle of New York costume, suggesting there’s some time travel going on.

This would tie in with Black Widow having red hair as she did in Iron Man 2 and the first Avengers movie in which the Battle of New York took place.

So are these actually the past-selves of Cap and Natasha in the Avengers 4 concept art?

It’s certainly possible, although Cap is wearing his suit from Civil War, not the smoother, cartoony costume from the first Avengers movie.

However that doesn’t mean he and Widow won’t adopt their old looks for a mission back in time.

This would certainly make sense since they’ll want to go undetected but alter events that led to Thanos winning in Infinity War.

Plus the Avengers 4 screenwriters have teased that both Cap and Widow will have larger parts in the movie than they did in Infinity War.

Speaking with Inverse, they said: “[They] have a much bigger role to play in that second film.”

Avengers 4 is released in UK cinemas on April 26, 2019.