Getting Gakpo back is huge. He's the other proven, bona fide goal scorer that this team needs. I'd also continue to play Jota because at least we know he can score goals. Ride him until he breaks again and then sell him in the summer. Nunez doesn't see the field for me and has a "break glass in case of emergency" designation on him now.
Regarding some of eiggA2002's comments above; I think there's some validity to their comments and some "that's just good v. good football" going on recently. I do agree that our midfield looks absolutely spent right now and that it has led to a bit of back and forth football recently, but on the other hand I think back and forth football is simply just a product of good teams going at it, especially good v. good in the midfield. Villa had their chances with Morgan Rogers and Tieleman's running with the ball, and we had ours controlling the ball with Grav, Maca and Jones, and Szbo pushing forward.
I also don't necessarily think we necessarily lack depth in midfield. We have a great group of six guys in Mac Allister, Grav, Jones, Szbo, Elliott and Endo. What I do think we lack is a specific type of depth. From that group I mentioned, Mac Allister, Elliott and Endo aren't particularly athletic, and also quite short. That's not a bad thing, but when you take into account we play Szbo as almost a false 9, it leaves us pretty unathletic and short in the true middle of park. Then add on that Slot hasn't rotated there as much as he should have, and you get a midfield that is teetering at times (they haven't been garbage, just not dominant like we've seen).
What I have mentioned above is why I think Slot went with Grav, Mac Allister, Szbo and Jones in midfield last game. To lighten the load some and give an extra option. I thought it worked for the most part until the game became unhinged in the last 10 at Villa. I personally would do the same thing against City, except I really think I would give Mac Allister the day off and get Elliott on the field. Slot won't do it, but I think Mac Allister is shattered right now.
ETA: Sorry for the long post, but I have been brewing on that take for a while. Outside of terrible fullback defense, I think that is this teams issue right now.