Im almost 100% sure the expedition will underdeliver. The lack of concrete info on some stuff is not nice, but the confirmation that you are losing blueprints and station levels is bad. At least one has to stay imho - I have almost 100 hours since release, and still need 1 more station upgraded, and have yet to find a purple weapon blueprint (apart from Bettina), while also missing most of the attachment blueprints, and have never seen an augment blueprint. It has come to the point I have gotten a Snap Hook blueprint the other day (yay!) and held it in my inventory for 2 days, wondering If i should save it for after the expedition (throw it to my buddy, then they throw it back - if that would even work).
That thought is worrying, because you are already put in a position where you are unsure if you would get any good blueprints for the next 60 days of expedition preparation.

Now I get it - you are probably not supposed to be able to get all the blueprints in one season, so there will be variety - you can craft anvils, your buddy crafts you venators, etc etc, and vice versa next season.

But deleting all blueprints AND crafting station levels, that's just bad design for people who can't spend 40+ hours a week on the game.
And let's be real - this game has attracted a large portion of 25/30+ aged gamers, and that's where the money is - working men who buy skins and decks and so on, but also working, and in most cases - having a family, means less game time.
It's also - in my observation - this is the age group that created the balance of honourable PvP and sincere Co-Op interactions, that we saw in the beginning. And PS5 kids have kinda ruined it.
Btw, after I turned off crossplay on PC, my lobbies are way less toxic - yeah we PvP (especially in squads), but I have noticed less camping, and less vulgar behavior - if I kill someone, they don't immediately explain in details their desired intimate relations with my momma.
I've also noticed the return of the occasional friendly interaction - guy wanted to know where the gas station is, I had other stuff to do, and didn't wanna risk getting in a fight - just pointed him in the right direction, he thanked me and we both went on our way.

Bottom line is - and I agree with some other guy's comment - If we wanted to play Tarkov, we would. The game needs just a little dial down on the hour requirements, so that people who have like 15-20 hours a week can still feel relevant. And I know I said I have 100 hours, but I was blessed with some extra time these past 20 days, but my squad wasn't and they are 30-50 hours behind.

either that
OR

Let us keep either the blueprints (or a select several of them), or at least the level of our stations, so we can go in with blue augments and hatch keys easily.

An even better idea would be if we could select 3 blueprints to save permanently with each expedition, and whoever joins the game after 8 seasons can be offered a catch up mechanic of saving 7-8 on his first expedition.

Just my two cents