My German is so-so, but I'm pretty sure this means he has a good chance for playing for the Men's team.
http://www.icehockeypage.net/index.php/16-Nachrichten/del-del2/26704-rosenheim-classen
Just for comparison. Reichel is born in 99, last year only two players born in 98 played in DEL2 (Tobias Eder and Garrett Pruden). And they only played one game each. However Pruden played 7 games in the 14/15 season as a 16-17 year old.
Also the year before that Jakob Mayenschein and Maximilian Daubner played a significant number of games in the league for Landshut.
But overall it is really rare for kids to play in DEL2 at that age.
Rosenheim seems to me like they have a decent but not great team and in case of injuries (I believe they have some injured players right now) they might turn to Reichel for a few games on the 4th line, but i hope he plays mostly in the DNL or maybe on a loan in the Oberliga where he should be getting better minutes.