We could throw in some of the weirdest and most obscure characters that will otherwise never be used in the MCU into the Deadpool show.
Either as an excuse to bring them into the MCU with maximum campiness rather than having to be "realistic takes", or just being able to actually use them in a property and have it make sense. Or a character that is thematically relevant to traveling between dimensions, like Doorman.
Unfortunately for Simon, the production he signed up on didn't have the best writers / character designers.
I imagine the movie could have Simon trying to capture the released characters that are now running amok. Of course Ryan is only playing Simon and Deadpool while the rest are being played by others. Could be interesting. I think only 2 other characters should be released besides Deadpool. Gamecock is almost too easy to make fun of. Doorman could be interesting tragic figure as well to balance out the comedy, after continuous comments from Deadpool he eventually realizes that his life was some crummy television show. Truman show vibes anyone?
If not, these ideas could just be used for the in-universe Deadpool show itself as a way to use the characters without needing to commit to them being in the MCU.
===
Also, I had an idea for an opening for Wonder Man 2: Start with Eric Williams on the grindset. Listening to motivational music, watching old videos (480p?) of Tony when he was at the peak of his weapons dealer game, working out, and putting on a stylish outfit, etc. Showing that Eric has put a lot of hard work into turning his life around and is now the Maggia's new high-tech weapons and equipment developer. Could be interesting to showing Tony's impact on society pre-Iron Man still being a thing but in a inspirational kind of way rather than creating villains *cough* Mysterio *cough*, and maybe setting up some themes of Eric and Giuletta as a grey mirror of Tony and Pepper?
Maybe Giuletta asks about Simon and Eric says something to the effect of there are no hard feelings but he can't exactly just go see him in person, with his wanted status and everything, maybe he feels bad for how things turned out. Maybe Giuletta says she knows of a way to "clear his name" but it won't be pretty. Perhaps snooping for info on gov officials and blackmailing them to drop the charges, showing the Maggia's influence. This would also serve as an opportunity to show Bagalia especially in contrast to first world countries and reinforce the Maggia's view of family being important. And it gives them a good motivation to hire a certain mercenary to do their dirty work ("Ooh, government secrets!") once he appears out of thin air.
I was going to say that Eric would try to perhaps show up the premiere in disguise, but if we do a show instead of a movie it wouldn't really have a kind of red carpet premiere.
Perhaps we shouldn't do a Deadpool show and just show a bit more of the Deadpool movie inside the Wonder Man movie to set it up? Especially if the show is going to be made un-canon and just a vehicle to introduce Deadpool to the MCU. And Simon getting a big movie deal makes a lot more sense than him just getting a TV gig.