LH changed their pricing model and now offers affordable biz fares on intra european flights, starting at 349 € all in for P class (2 days min stay, nonref, change 65 €) or 649 € all in for Z class (1 day min stay, nonref, change 65 €). D, C, J remain at current pricing levels above 1k € and are flexible with no min stay. P and Z advance ticketing is 1 day only. Availability of Z and P has changed also: while same day changes will probably be impossible due to zeroing out of Z and P, some availability for the next days is now visible on routes that I have checked. Same day availability (for changes) is still mostly only in J (I hate this "J9C0D0Z0P0-game" of LH).