I dont know why but i can feel a final between Liverpool and Rome, if Rome has the enoguht luck in his side they can be in the final and De Rossi seems like he have that and plus the players are with him 100%.
For me Leverkusen is not gonna reach the final. They are gonna be very bussy with Bundesliga and they are not so good on head to head.
All the teams that have made it to the quarter-finals are strong teams including Roma, I don't want to refute your prediction because it might be your choice, but I think we can think more reality seeing who Roma will face now to reach the next round, Roma have indeed risen since the arrival of De Rossi, but with the quality and consistency possessed by Milan at this time, Are you sure if Roma can overcome Milan and advance to the final with just the de Rossi factor?
Leverkusen is quite comfortable at the top of the Bundesliga standings with a 10 point lead so I think that way they don't have any pressure in the Bundesliga so they can focus on their Europa League matches.
I don't think what you say has a strong reason, it's impossible for Leverkusen to put aside the Europa League for the sake of the Bundesliga which they are almost certain to get.
Roma does have quite good strength and has experienced very significant improvements since De Rossi's arrival, but I don't think it's easy, even in the quarter-finals against AC Milan, I don't think Roma's chances of qualifying are much greater.
I think it's just a prediction and of course we respect that, what you said is true, Leverkusen current performance is indeed quite good in the Bundesliga and they should now have focused their target on the Europa League, but honestly if in the Europa League, Leverkusen have not found an opponent commensurate with them especially before they struggled to beat Qarabag which is a weak team in my opinion, Leverkusen's first test is against Westham and I think it's difficult for us to say if Leverkusen will easily beat Westham, yes I also hope that two between Liverpool, Leverkusen and AC Milan can reach the final because I think that would will be ideal final this season.