Skoobaba: The guys behind Space Quest is making a Space Quest ish game right now. It got funded by kickstarter. As a side note: I just discovered a sequel to Loom is in the works, as well. Looks pretty damn good.
Yes I know about Space Venture, but its technically unrelated to Space Quest. Activision still owns Space Quest, and could do something with the IP.
http://www.sierra.com/kingsquest Ok King's Quest 9 has its own new website page. Not much here yet, but the trailer.
There is some more description that seems to suggest the game is not simply a 'retelling' or 'reimagining' (it is a 'reimagining' but might be something more than that) but is intended to tie into the original series and expand upon them, but at the same time is also independent of the original series. Which seems to suggest a kind of 'mixed-canon' so to speak.
Developed by The Odd Gentlemen, the new King’s Quest™ reimagines all the charm, humor, puzzles, exploration and sense of wonder that made the franchise so magical when it first arrived thirty years ago. Old and grey, King Graham – the hero made legend in the original King’s Quest games – shares the extraordinary stories of his youth with his curious granddaughter, Gwendolyn, taking players back to the feats that shaped a kingdom.
And so begins an episodic saga that honors the core characters and familiar storylines of King Graham’s early adventures, setting up new chapters tied to – but independent of – the series that helped define Sierra and the adventure genre. Through these tales, a whole new generation can finally experience one of gaming’s most beloved journeys.