I don't think so this would have to take place at Light Heavyweight and Collins only fought at Middleweight/Super Middleweight I'd heavily favour the more proven fighter at the weightclass and that's Michalczewski.
Collins would put up a hell of a fight but he was a bit light heavy and DM was very physical at 175 and had success at 190. I think he simply is too big for the gritty Irishman.