Qwiss I'd go for Smith-Rowe, he speeds up our attacking play and makes the sort of off the ball runs we need. His sharp one two play and quick one touch progressive passing is exactly what defenders don't want to deal with and it'd stop our slow return to the horseshoe of misery.
Is the stage being set for the latest Smith Rowe recovery mission?
*Checks Boxing Day fixture - West Ham at home, hmmmm, just maybe...
Personally, I think if Saka is going to be out for any length of time (and perhaps even if not), Arteta has got to find a way to get Emile into the team now. For all the reasons you've outlined - and because I might go mad watching us if he doesn't.