Huijsen would get lots of game-time. Konate will inevitably get hurt, Van Djik could rest more, Gomez might go this time (he deserves to start elsewhere), and Quansah isn't there yet. Could they buy and then loan him back to Bournemouth?
I see Chelsea being all over him so we'll see.
Re: Kerkez, not sure he fits. He's an improvement, yes. But if Trent leaves, Bradley will take Trent's spot and Bradley plays more direct up and down the pitch than Trent. From what I have seen of Kerkez, he also likes to get up and down the pitch. I don't know if Slot needs both his fullbacks to be doing that. I could see him wanting his LB to sit back a bit more and have possession (especially if Bradley is the advancing fullback). Maybe some like Hato is a better fit for that?