Just seen some Luka Vušković highlights, which heavily features his long passing. If that is representative of his skills, he could be a very good complement to Dorrington who loves to run up the pitch with the ball.
Very interesting, but still a long time to go before any of us will properly see either play.
Dorrington is great running with the ball as you say but he's also got great passing - often long diagonal balls to pick up a forward running down a flank, and maybe 50 yards away.