The best case scenario for Donny is that a 4-3-3 formation change will suit him more and he'll be an impact sub and a back-up to the two 8's (Bruno & Pogba) competing with McTominay.
The way we played last season, Pogba is a much better Bruno substitute and I honestly don't see much of a role for Donny there.
Their right winger, yeah, not their attacking central midfielder.
Ziyech was on the wing, precisely because of his risky style. He was sometimes played as a 10 earlier on and it didn't work quite as well. He fills the RW role in a Mata kind of way and not as a traditional winger. Almost always when he had the ball, Donny was further up the pitch, already in the box or running towards it. Donny played deeper in his last season after De Jong went to Barca and it wasn't anything special.
I disagree with the view that Bruno is some risk monster that can only play with holding midfielders behind him. He's capable of being more disciplined in my opinion, it's just that he's served us well as someone that can make things happen and the whole squad is looking at him to do so.
Sell ASAP. Wasting our time keeping him.
Everything points to him not going anywhere. Hopefully a packed OT will light a fire under his arse.