My prediction is that the final is likely to be Man United vs Tottenham because their chances of qualifying are quite large.
If we look at the current aggregate, yes, Man United and Tottenham are the most likely candidates to be in the final round.
Unless:
1) Man United or Tottenham make a very fatal and careless mistake so that the opponent can turn the situation around very epic
2) More red cards for both clubs
However, if the conditions are normal as usual and there is nothing very bad, then the chances of Man United and Tottenham to enter the final are indeed much greater.
So, don't let them underestimate their opponents, whatever their conditions, so that the aggregate number is maintained until the end.