Yeah, it's more than worrying they've been trying to create a new system for 2 years now and don't even have something worthy to present...let alone test in EA...
They did add an official Reaction tooltip and icon on abilities, but that's about it.
This is the other major thing that tells me we're not getting an updated system. Imagine we DID get a major updated reaction system so close to release, and then it turns out it's implemented in a way that's still rather flawed. Any fixes before the final release would be haphazard at best, compared to a system released far earlier during the EA phase that would have had more time to be refined AND with future classes already being designed with the system in mind. Though with that logic, one would say that the current system IS the system that has been refined throughout the EA phase thus far, with each new class being designed around its existence, Bard being the ultimate proof thus far.
Originally Posted by Topgoon
This is kind of the same reason why modders managed to make a Turnbase Mod for Pathfinder Kingmaker (before it was officially implemented) - because the backbones of the PnP turnbase system was already in the game (rounds, action, initiative, swift actions, etc). They obviously had to do a lot of work to add proper limitations and provide a proper UI, but it's infinitely more doable than making a new system from scratch.
On the other hand, something like a proper Day/Night cycle implementation (i.e. with proper NPC schedules, etc) is a HUGE change vs. reactions because it affects tons of content - almost every level/map in the game, NPC logic/movements and also potentially dialogue design.
I agree with this overall message, but I also think that adding proper reactions into BG3 would be on a whole other level of difficulty compared to adding turn-based to Kingmaker, since I think the backbone for converting Kingmaker into turn-based was as you said all already there, while BG3 appears to be missing key components such as mid-turn interrupts (along with the vast majority of reaction-dependent abilities just not yet even existing) that would allow reactions to work. If it were truly that simple, I feel like the modders would have already made some attempt at it - indeed, BG3 even in its EA phase has a far larger audience than the Pathfinder games did, and I imagine a bigger modding scene as a result too.