It hardly seems to be the perfect time to bring this up (fan opposition aside).
If CV-19 doesn't get zapped, which is highly likely (and most Corona vaccines will reportedly only offer around 60-70% protection against infection anyway), then crossing multiple borders per week isn't exactly going to be encouraged (even with improved testing).
Then with possibly even more severe entry quarantine restrictions / testing on the horizon, and likely different Govt. regulations in each country, the days of quick 24/48 hours return overseas trips may be long gone for a long time to come, and not just for players so you can shelve those Prague/Amsterdam plans!
That could quickly dissipate any enthusiasm (from the clubs) for a weekly Euro-league even before it kicks off. We need to see how the CL/EL is handled this season and what future developments there are with CV-19.
A bit nervous with our team traveling to the NL today/yesterday. Much higher infection rate over there than even in the UK (1:2000 vs 1:3,200).