Based on what Jan Bors said on Twitter, it looks like there won't be a NF to select the song.
Jan said Benny has worked on couple of songs and he will select the one which will represent us in ESC next year.
I assume Jan still has many contacts and info from the team despite not being the HoJ anymore...
1. Internal selection - Edit: according to Kryštof's comments, this is because the participation itself will consume a lot more time and resources this year due to all possible EBU's scenarios.
2. There are several changes in the delegation, Kryštof Šámal succeds Cyril Hirsch as the HoD, no clear Jan Bors' involvement on the horizon.