Red Star and Black Widow

 

One real shame about Natasha Romanov being killed off in the MCU is that it creates a big missed opportunity.  Now that Daredevil is in the MCU proper, I would have loved to see him share some adventures (and possibly romance) with The Black Widow.   I guess there are a couple of opportunities to do this.  The upcoming 18 episode Daredevil series on Disney+ will have plenty of room for flashbacks, so maybe she could be included there.  Failing that, they could bump into each other in one of the upcoming time and reality warping Avengers movies.  I think all of these scenarios are probably long shots, however.

Groot and BB-8

 

The characters introduced in the third Star Wars trilogy were hit and miss with me, but one that I really got a kick out of was BB-8.  I was very impressed with his simple yet effective design, and really liked all the personality that was put into the droid.  Best of all, he was realized mostly practically, which made him feel all the more real on screen.

The Falcon and Nightwing

There was talk of a Nightwing movie for a while, but I haven't heard anything about that in ages.  I think the problem is that Batman in the movies keeps getting re-set.  We never get around to introducing Robin, let alone allowing him to graduate into his second super-heroic identity.  I understand that's been a major plot point of the Titans series on DC's streaming service.  I'll have to check that out one of these days.