Given Tim Schafer and Double Fine's current track record of not finishing anything, do you really expect to see this happen in your lifetime?
Tim Schafer talks a good game but can you believe him?
Consider the number of games DF has started since Broken Age was funded two years ago to the tune of three million (Massive Chalice, Spacebase, Hack & Slash, possibly others since I've stopped keeping up) plus whatever funds they got from early access on Steam, and Broken Age is still not ready...nor are the others.
Compare that to games made on a tiny budget with a tiny team, started later and already released and playable...such as Jan Kavan and Lukas Medek's absolutely beautiful J.U.L.I.A.: Among the Stars.
I love Grim and while I see no real need for a 'remaster' I'm far from averse to those who have never played it being lured by a remaster into its world so they can see what a great game it is and why it consistently makes the list of top adventure games; but unless Sony (or someone) stands over Tim Schafer with an army of accountants who force him to stay on budget and finish the project in a reasonable amount of time, I honestly don't see it happening.
"Best not to think about it. I don't want to fall to bits 'cos of excess existential thought."