Hack4Glarus 2020.2 - 2020-12-04 - 2020-12-06? (No CfP yet)
Linux Expo Ulm 2020 (together with Linux Presentation Day 2020.2), Ulm, Germany - if it takes place at all,it will be on 2020-11-21
IT-Kongress 2020, Neu-Ulm, Germany - 2020-11-12 (No CfP yet)
X2Go: The Gathering 2020, Linuxhotel, Essen, Germany - some time in 2020-07, 2020-08, 2020-09, or the first two weeks of 2020-10 (trying to avoid these, though). Planning sub-page can be found here
OpenPOWER Summit Europe 2020, ??? - some time around September-October 2020 (No CfP yet)
LinuxDay.AT 2020 - 2020-10-10 (No CfP yet)
TUEBIX 2020, Tübingen, Germany - 2020-06-20 (No CfP yet)
Hack4Glarus 2020.1 - 2020-06-05 - 2020-06-07 (No CfP yet)
LinuxWochen Wien, Vienna, Austria - 2020-05-07 to 2020-05-09 (CfP Deadline 2020-04-14)
Chemnitzer LinuxTage, Chemnitz, Germany - 14-03-2020 to 15-03-2020 - unable to attend, would have clashed with Pi and More 12 1/2; Note: CLT has been cancelled/postponed due to Corona; PaM will take place. If CLT will be postponed to a later date in 2020, we will reconsider taking part.
2020-03-14 - Pi and More 12 1/2, Stuttgart, Germany
Pi and More does not charge any entrance fees, but does require you to sign up in advance here for a ticket.