I think injuries and the need for rotation may force Conte to play a midfield three in this or the next game.
Will be interesting to see what he does at RWB. Royal will miss out in the league, if he starts this one I can only assume that means he's still first choice in Conte's mind.
I don't see why Conte would have had his position on RWB changed after one game, unless it was a straw that broke the camels back type situation.
Up to whoever steps in to play well and show what we have been missing in the 3 league games, should Conte allow one player to get that run in the team.