I know it'll probably never happen, but I really wish Capcom would release a new all-encompassing Battle Network game. The collection is nice, but it lacks cross play and it's essentially just a .rom collection with all the promotional stuff included. Battle Network was a core gaming experience in my friend group growing up and I think Capcom could bring the series back into popularity.
The series has always been kinda cryptic thanks to wonky translations and character limits on chip descriptions. For example, I didn't know how the VariableSword battlechip worked until a friend used it and it made me curious how the fuck he launched Protoman slashes against me. Turns out, you can hold the use button and input directions on the D pad to launch different attacks. The Fist chips are the same way, which I never experimented with because I just assumed they were just sword attacks with a slower animation and a pushback. Of course, none of this information is available in-game or on chip descriptions thanks to aforementioned character limits. The few times an NPC may divulge such information, it's lost in translation and might as well be a fortune cookie.
Hell, I would even be alright if they changed up the formula to 3D and used arenas similar to Microsoft's Phantom Dust. Battlechips would still be the main form of combat, but give the gameplay the freedom of not being stuck on an 18 panel grid.
Also, side bitching here, but I wish MMZ's Zero was used more in other games. Before Marvel vs Capcom 3 came out and I heard Zero was on the roster, I was lowkey disappointed that it was his X design yet again. One would think they would use the sleeker Zero design with varied weapons, but I guess not. I've been dabbling in Smash Bros Ultimate again with the nephew (he doesn't know I was playing Smash before his existence was even a notion) and it's annoying to see all the Zero related Spirits and only having Mii costume parts as far as a playable character goes. Hell, Mega Man's smash attack features every one of his iterations, yet Zero gets dick outside memberberries. Really Nintendo, adding just ONE MORE sword fighter isn't going to fuck Ultimate's roster up more than it already is.
Come to think of it, the ONLY game I can think of off the top of my head that featured MMZ Zero in a playable form was that jank Playstation AllStars Smash clone. He has attacks that show off cyber elves and his arsenal, which would be cool if it wasn't a wasted effort in a dead game. It was actually a cool idea since up to that point, we hadn't seen cyber elves manifest as actual weaponry and it adds a nice touch to the lore behind them.