I think it all gets agreed between the three parties and some form of compensation gets agreed upon. Knowing Sheff Weds owner there won't be much negiotiation!
I think he will end up at Wrexham or Birmingham, start the season well with a few goals, get injured, and there will be minimal involvement for the rest of the season.
I never understand the buying of the training wear; it's pretty much paying £15 for a badge printed on.
https://www.kitking.co.uk/products/puma-team-cup-25-training-jersey