I doubt it, ok the game can be played in spite of the restrictions in Wales but I would not think it would be encouraged to stay in the area longer than required.
You are talking 4 days before the game so back to the Boro bubble asap
Don't think we'll be seeing figures any time soon. Sky were asked how many people paid for the PPV PL games at the weekend. Sky's reply was "We won’t be sharing the PPV numbers as they are commercially sensitive". 🤫