They specifically said they won’t say anything further than “it will be supported”. That doesn’t mean anything, it’s vague handwaving. Supported how, when the whole dev team has been laid off? What it sounds like is the game has been put into maintenance mode until they finally decide in a year to abandon it.
"Don't worry, we fired all of the people that told us not to shove paid DLC into every aspect of the game, and now we are cruising along for a full release next summer. Pre-Order the digital still-won't-suck-your-dick edition for only $109.99 and get a 5 song soundtrack, 3 HD wallpapers and a half-assed content pack that you'll forget about 30 minutes into the game."
For those who want to try a nice KSP spiritual successor, check out Juno: New Origins. It's regularly being updated and has lots more content than the first KSP.
Developer Intercept Games does indeed seem to be getting shut down :( There's coverage at Eurogamer and lots of other sites, mostly pointing back to Jason Schreier (paywalled ofc because it's fucking Bloomberg).
It's not at all clear what that means for the game. "Safe" seems unlikely.