While there is an element of unknown in what he will do as a forward here - he had multiple seasons worth of sample at forward in Chicago.
Where he was, as far as I know, relegated to a non scoring role, asked to be a PWF, and treated like a 3rd/4th liner. Here he's getting more minutes with people like Scheifele, Wheeler, etc.
I do think it would be good to trade him to load up for when Scheifele/Trouba/Morrissey are in their prime, but I don't think we should trade him for prospects that are years away and still unknown. Trade him 1 for 1 or with a small plus for someone that is a very good blue chip piece. Skinner, Eberle, Stepan, Seguin, etc.