Yes he should play on Wednesday (we have no alternative but to play him although he deserves to stay in the team anyway) and my opinion that I have shared a few times about how we did on Friday is summed up in those first 4 words, "Pratt did very well."
He should certainly start the next game, and he will be given the opportunity to be considered a first teamer because regardless of how he does in the next month, he is one of 3 centre backs that we have so he will need to play every minute of every game this month.
The opportunity is there for him. Best case scenario, we come through December and he proves that he can handle consistent Championship games. Certainly no suggestion here that he should be dumped or forgotten about. But we will need new centre backs either way.