I'm not sure he'll suit the winger role Ten Hag seems to want, but maybe as the new backup #10 to Bruno with Van De Beek moving on. He's not the kind of speedy dribbler Ten Hag seems to prefer out wide (though he did move Tadic out wide and get Haller), but his link play seems nicely suited to Ten Hag's football. Not a great striker of the ball, but otherwise not dissimilar to someone like Berghuis who did well moving from out wide to a #10 role for Ten Hag.
So yeah I can't help but feel he might be a better fit on a counter-attacking team or one playing 2 up front even. I like him a lot, but I kinda see him ending up as a starter for Sociedad, Sevilla or Leverkusen when all is said and done. Also wouldn't be shocked if he wins the backup RW job, it's Garnacho and Rashford on the left and then we sell Sancho at a huge loss but still get back 40M or so Ten Hag can spend on the #8, #9, RB and CBs he still needs.