Not to his previous level IMHO due the medial meniscus injury
Mental aspect is a consequence of the physical that he no longer possesses in terms of burst or ability to dribble out of pressure. In open space, still a dangerous player who appears to still be affected by the mental but when he was marked on the flanks he used to effortlessly glide past defenders. And frankly, we have yet to see the physical version of Ansu pre-meniscus injury who did not really use his physicality but his athletic skills to dribble his opponent or race past them - post injury I have yet to see him do that & I don't believe the mental is the root cause
The knee, it was known then, would alter his career trajectory as medial meniscus injuries can - he could be 100% mentally back but he would not have that physical edge he once had. It's the reason why I have felt he has to adapt to a new position - he's not a CF or winger any longer and isn't skilled enough as a #10. But longterm I think the SS is the only position he will be viable in - just not at the level he had before