I think Bruno will push for a move this summer. He's looked really unhappy all season (it gets overlooked because of Rashford's demeanour) and he'll have seen what happened with Mata and Pogba, ie. two highly talented footballers who wasted their career with us.
Whatever you think of him, he is a football obsessive, works his bollocks off and has a burning desire to win. I do believe he loves the club and the fans but in his heart he will know that he isn't going to win anything of note with us. He's smart enough to know as well that give it a season or two and he might not even be in the first eleven.
It will be best for both parties if he moves on, and I don't think anyone will think less of him for it.
Rashford on the other hand I think the club may need to ease out for his own good and ours. He's clearly not in a good place mentally and seems to have fallen out of love with the game so possibly lacks that desire to kick on elsewhere.
I don't think either of them magically become what this team needs to reach the top, unless they're willing to be bit part players.