In Germany there was speculation that he would become a striker because of his height and finishing (and probably because the German National team has a shortage of strikers so it would be good if one of their many wonderkid wingers moved inside).
I think he will be a bit like (cristiano) Ronaldo or Bale in that he will be an aerial threat and deadly coming off the wing but not good enough when stuck upfront on his own - but you never know! So far he's missed a couple of headers for us so maybe he needs to work on that part of his game.