@Zehner
I do agree his finishing is good, hence why I said I see him becoming a striker in the future. He seems good in the air and in the box.
Lampard seems to prefer the 3-4-3 in bigger games, so might be interesting to see if he switches to a 3-4-1-2 like Leipzig used, could Havertz be their Nkunku?
I'm not sure the point about pressing really matters when you're a forward/attacking midfielder, he's usually the one doing the pressing rather than being pressed (unless you're talking about when he's playing as a CM, but I don't see that happening at Chelsea)
I think his movement is the bit i'm interested to evaluate once he comes to England. I watch a lot of Bundesliga and teams rarely defend in deep lines, they always press high and have high defensive lines as you state. It the teams can bypass the press teams are VERY open at the back, which helps Havertz and others have a bit more space than usual. I will be interested to see how he fares against a more typical english defence like Sheffield United or Burnley etc.
Don't get me wrong I do think he's talented, scoring goals at 20 years old is always a good thing, but for me i'm reluctant to call him a world class talent just yet. I'll be happy to admit i'm wrong if he storms the league! We've seen lots of Bundesliga attacking midfielders come to England and flop badly, our own Mkhitaryan for example who I think is a similar style of player.