these types of games reminds me of Dungeon Fighter Online. If you are poor and don't want to buy Dragon's Crown Pro this is your game.
There are basically three classes in the game:
power type (think of the warrior in diablo, they hit hard and take hits, Good at melee. Has super armor properties)
speed type (fast movement speed and combos, the rogue in diablo or assassin type in your typical elder scrolls with less armour/health)
skill type (the wizard. shit melee, but good at longer range)
I think capcom can ressurrect old franchises like King of Dragons or Final Fight (IE keep the arcadey gameplay of the original games but add all kinds of cool customisation, leveling systems and unlockable shit. Sort of like Dragon's Crown but do the free to play online thing and co-op local thing more) if they go with a more open world system. (no levels, the areas represent places you can go to and enemies just level with you and when you kill a high level guy they drop better shit) How do they make money? pay for costumes and gradually release new characters with unique styles of fighting like in Street Fighter V.
related:
collection of Knights of Valor arcade playthroughs/longplays (these games were the "dynasty warriors" of side scrolling beat em ups with 2D handdrawn graphic) https://en.wikipedia.org/wiki/Knights_of_Valour" onclick="window.open(this.href);return false;