His role (I am guessing) is to develop and give BWP a rest here or there. We'll see if his speed is matched with good movement to be an effective 70 minute sub.
His potential may be greater over time, but I think BWP will still be getting the lion's share of the minutes and that Mathias will have time (along with White) to grow into his position.
No doubt that, in the short term, BWP is still the man up front. But the fact that RBNY paid a transfer fee and used TAM to sign him suggests that the Great Dane is going to see the field regularly. Whether that's as a sub for BWP, or in addition to BWP when RBNY needs a goal, as a spot starter instead of BWP, or possibly as a wing, remains to be seen. It seems that he'll be more of an offensive threat than Muyl.