I bought DarkTide in Beta on my experiences in VT2. Which I bought I think about 2-3 years after release on a Steam sale, just after the Winds of whatever patch. I really liked it - a bit l4d2, but with that old Fighting Fantasy feel to it.
But my experience in DarkTide, while fun, will not encourage me to buy the ‘next’ Tide game at launch. I’m baked on DT. I’m not going to be around to see “the next great thing”. Don’t get me wrong, I’ve enjoyed it a lot, but it’s been a time of two halves. 12 months of meh - I’m putting up with this really til you fix it, and 6 months of actually “this is pretty solid” play time.
My experience as a heavy player since launch has seen these improvements:
1 - crash fixes. Because it crashed a lot.
2 - bug fixes. Because there have been a LOT of bugs. There still are (sound cues).
3 - improvements to fairly stupid UI choices: e.g. having to use a Roll-Until-Value mod
4 - a new player skill tree: which lets really be honest, is to fill the gap because they didn’t create any new player classes in 15 months after promising something quite different.
5 - a crafting ‘unlock’. Of two traits, in total. o_O.
6 - a few new maps. The new maps are good. But I think there are still, what, 12 maps in total? In TOTAL. And they’re all disjointed. And many are just reverse plays of others.
I think VT2 had 4 full mission arcs each with 3 maps in (+1 finale), but then the expansion packs opened another 13 that I got for about £4 in total?
7 - an event. I liked it. It was short though. Nothing like the Chaos Wastes.
8 - some new weapons, all exactly like the previous weapons but with different move patterns. 
Which when you enumerate them feel a lot, but when you think that maybe these all should have been built in to launch, I dunno. Let’s just say, I don’t think I’ve seen anything that really changes that baseline experience. And considering I’ve put close to 1000 hours in, and sat on the armoury chrome plug in for around 300 rotations, I’ve still not seen some weapon blessings / combinations to try them out.
And then specifically to your point: we’ve heard NOTHING of note since they released the twins in October. Mate: you might have the patience to see what drops, but the player base has left. Gone. The game crawls along, but even these forums are dead.
In my interpretation, they’ve decided that they’ve got the money they can for this release, and have shut up shop.
I don’t feel badly done to. But there’s no way I’m coming back when I do step out in the next month.
I think FS are best making this P2P, opening the cosmetics shop for underpaid art grads, and winding down the operation.
(* typo edits)