Rangnick confirms that Paul Wanner is going to wait to make his decision on whether to transfer to the Austrian NT. Bayern are working on a loan for him to get consistent PT, with references to Alaba & Kroos' loans to TSG & Bayer, and the kid reportedly wants to wait until he's established himself at the senior club level before making any longlasting decisions about his NT future.
Part of me thinks he should do it. He's an incredible prospect, but he's not that much younger than Musiala, Wirtz, Adeyemi, & Moukoko...and it's a position we develop well even when the Havertz / Brandt's of the NT age out...in his own age group there's Ibrahimovic, Bischoff, Raebiger, Diehl, Ulrich, etc. that have senior NT potential. So it will be a crowded field for him to break through.
On the otherhand, he's talented enough to break through alongside Musiala, Wirtz, & Mouki, and be part of a world class attack.