For some reason, i think Estonia and Poland will someday adopt it too. Czech Republic is probably the first to pass it, followed by Slovakia, Slovenia, Poland and Estonia I think (which order is left to debate). Poland might be a hot take, but if they go the Estonia direction, it might happen but it won't be tomorrow.
Seriously, what prompts you to think that Poland will ever pass a bill legalizing SSM?
Even former President, labor union leader (!), and Nobel Peace Prize Laureate (lol) Lech Wałęsa contemplated back in 2013 banishing homosexual parliamentarians to the backbenches and, to top it all off, even brick them in...