I am trying to get business award tickets on LH for departure on 7/10-7/14 from SFO-IST (SFO-MUN, MUN-IST). On the availibility tool, that flight shows something like this for each one of those days.

SFO MUC 12/2125 13/1735 LH459 C9 D9 Z9 Y9 B9 M9 H9 Q9 V9 W9 S9 [346]
[DAYS OPERATES 1 / JOURNEY TIME 930 MIN.]
MUC IST 13/1925 13/2255 LH3352 C9 D9 Z6 Y9 B9 M9 H9 Q0 V0 W9 S0 GC KC LC TC [319]
[DAYS OPERATES 2]

They look wide open! Does LH usually release some of these seats closer to departure? I really want to try out their new business class.

Thanks!