[2021] Buy season pass 2 now?

Hi guys, I have Anno 1800 and the first season pass. I could get the second season pass for 16 Euros now (it's on sale). Is it worth it or should I wait for when season pass 3 becomes available? When is that? I'm asking because there seems to be some kind of Gold Edition with all Season Passes. Maybe there's also a season pass bundle coming? No idea...