Adam has a great origin, which I think potentially could make for a cool TV show (not sure they could jam it all into a 2 hour movie). Problem being his name and gimmick might sort of overlap with Carol to the point where he might come off a bit derivative.
Monica is debuting in Captain Marvel, and we saw Voodoo's brother in what I believe was a deleted scene in Dr. Strange. So odds are descent both of them will show up in the MCU sooner or later. Wouldn't be at all surprising if they interact with T'Challa at some point. Avenger movies tend to bring the heroes together.