If he gets starts and does well,it can only be good for the team.He was brilliant yesterday and his finish immense.
If he stays in January and can offer this when given the chance,fine,really good.After his determined efforts in the past 5 days,he deserves to start more,and he definitely can do well if he conducts himself like this and plays with this mentality.
However,If the club is looking to sell him and his good shows can raise his transfer fee,fair enough.