I agree with whoever said it's probably going to be a draw.
I think Saka would struggle against Cole, because the latter would be able to match him for strength and speed, and Saka tends to struggle against defenders like that. Havertz won't get much change out of Campbell, but the space above Toure's head could definitely be targeted. Whoever said we would feast on set pieces was spot on, I can see the current team easily scoring a goal or two through that.
The midfield is where things would really be interesting. Rice and Partey vs Vieira and Gilberto would be one hell of a midfield battle. Really hard to see who comes out on top there as they all match each other physically and technically.
Henry would make mince meat out of White and Timber, but would be an interesting matchup against Saliba. Saliba for all his size and recovery speed would have his work cut out against Henry who could easily be too fast and powerful for him, but on another day Saliba could also get the better of him. However, Henry can hurt you in several ways and could just as well avoid any direct battles, come short and wack one in from 25 yards.
Odegaard and Bergkamp might have a little competition between them on who has the best first touch, but I'd imagine they would both be quite peripheral given the battles that are occurring elsewhere on the pitch.
The Invincibles would delight and entertain, but the current team would roar back with a header or a set piece. I think a 2-2 is a likely result.