Yesterday night Czech government has announced some updates in the current state of emergency.
The previously declared 5 step easing of stringent rules due to the coronavirus epidemic will now happen in 4 steps. This means that by May 25 everything should be open in the Czech Republic. There may be some hygienic rules applied to the specific instances but that is not clear yet.
Another update is that as of today the boarders are open, and traveling is allowed. You be required to present a negative COVID-19 test after your return or spend 14 days in quarantine.