I haven’t seen this mentioned here before, but apologies if it has been already…
Ken & Roberta Williams have been working on a new PnC adventure game for a while and are going to announce what it is on March 21st…
I love a lot of the old Sierra games, so I’m hoping it turns out well!
Exciting!
Metal Jesus made an Interview witth them. 
The game is going to be “The Colossal Cave 3D”, a reimagining of “Colossal Cave Adventure” from 1976 -
They talk a bunch about it being a VR game, I don’t know if that means it’s only VR or not…
Loom 3D 
…sorry…
Colossal Cave is as old as I am. So, ancient.
And what I am then? Prehistoric…?
Don’t sell yourself short. You’re positively primordial!
They have a trailer for it - Colossal Cave 3d Adventure - Reimagined by Roberta Williams - YouTube
Most of it is just Ken and Roberta’s history, but at the end there are a few shots from the game in motion that look cool