More relevant news, they're streaming right now to reveal more about the upcoming expansion for the game, 1999(that's the name of the expansion, takes place in a warframe version of 1999, with "modern" street areas, malls, a boys band, a bike to travel around and other random stuff). Content wise it's a major patch similar to Sanctum, with a full new tileset(that has 4 cosmetic variations based on seasons), lots of new mobs, bunch of new story, new standings to grind, a new frame(sniper frame), a new endgame weapon grind system similar to Kuva/Tenet named Coda using infested weapons(10 old weaps and 3 new ones). Trinity and Nyx reworks too(mostly buffs for Trinity, Nyx in this stream).
Actual release date hasn't been announced yet but should be in this stream(likely the week after next).
Edit: They're delaying the Coda system to later cause they're late and they figured they can cut that part out without affecting the rest.
Still no release date so not next week, possibly the week after but seems they're behind on schedule if they don't know when yet. And then they will likely need to hotfix for a while to fix all the broken stuff they'll add, but christmas break so yeah might not be super worth playing until the coda update like in late january.