Well, we should know the SF appointments. I'd say Taylor or Oliver will get one, maybe Attwell the other.
As for the Final, Keith Hackett seems to think it will be Lee Mason. I'd be surprised, firstly because he had the League Cup Final and secondly because we have five FIFA referees who haven't done the FA Cup Final yet. I expect Pawson or Tierney to get it.
On the subject of Mr. Hackett, I find myself increasingly in agreement with him over the use/ misuse of VAR and the way that standards have dropped. I realise there's no love lost between him and Mike Riley, of course!