If I’m not mistaken, the seasons individually are all pre-planned and more-or-less completed months ahead of time. So even if they have been listening to players, planning to address some long-awaited fixes (such as restoring vaulted content), and just generally improve the game due to the current level of dissatisfaction, it’s unlikely we would see that change immediately in Season 19. They would have to trickle in a few smaller fixes to quell the masses, while planning to implement greater fixes in later seasons, and that’s only IF they plan to address what seems to be a genuine exodus of players. In short, of course S19 will be more of the same. If they actually intend to address the problems of the community (and those problems are often contradictory due to difference of opinion, mind you), it won’t be happening until Lightfall at least.

This is similar to the thought I had about this year in general. This year seemed more about getting some foundational stuff going and tuned, like 3.0 subclasses, core mechanics, things that you don't really want to mess with if you're introducing massive new environments and gameplay elements, so you use the elements that are already in game. This groundwork could allow them to really pull out all the stops in Lightfall. I'm no dev, but I can imagine that, as you said, seasons most likely are done a couple months in advance making immediate changes incredibly hard to do. If it were me, then in order to not break the game I'd want to make incremental changes and fold them in, addressing whatever issues stem from them before adding the next QoL feature. And if this is what Bungie is doing then yeah, it would be awesome if they communicated that, but not only is the community often contradictory in their opinions but often address their concerns with such vehemence and vitriol that I wouldn't really want to communicate with them either. Can't please everyone, sure, but the folks acting like Karens and Kyles towards Bungie don't make it easy for them to communicate