Yeah it would be pretty shitty of them to recast. I understand he was a part of a different universe, but at the very least Charlie Cox and Vincent Donofario or w/e the fuck his name is that plays kingpin completely embodied those roles. They were well received from the jump and it continued each and every season.
Definitely since they are street level heroes there should be no issue just migrating them to the MCU. Let him stay in hells kitchen. Hes not gonna be needed to go against Galactus or whoever the fuck, but give him the occasional team up with Spiderman or Punisher. Luke Cage or whoever is on that same level.
Tbh and im sure ive seen it in this thread a few times, terry crews needs to be the MCU Luke Cage. Dudes just perfect for it.