I think it's more likely that we'll ask a lot from Solanke again rather than start Son. Son has fairly consistently been rotated out from the EL games I think, was subbed against City after the internationals. I don't think that was done to rest him for the EL, but rather to keep protecting him as we'll probably have to do for a while now.
Other than that I agree with your likely lineup. Perhaps a slight question mark over Maddison? Looked back to his best against City and hasn't played that much recently. He'll probably be fine starting 3 games in quick succession, but could be rested to keep him fresh for Fulham. A bit like Son (though obviously younger) I think he's one in need of a bit of protection from playing too much. Roma are a good team too and a midfield trio of Maddison, Bergvall and Bentancur is a bit light defensively.
Wouldn't be surprised to see Bentancur, Sarr and Bergvall with Bissouma, Maddison and Kulusevski starting against Fulham.