One of my favorite games of all time, Day of the Tentacle, was nearly released as a remake by LucasArts before the studio was shut down. According to a Kotaku source, the remake was "80% done."
The source that was "close to the project" said that the Day of the Tentackle remake was to include updated art and cutscenes. The source also said that the DoTT remaster was a "dream project" for most employees, but it was never technically greenlit. So, unfortunately, even if it were finished, it might never have seen the light of day.
Now, Internet world, I request that a petition be made and it get thrown onto Kickstarter for crowdfunding to get it finished. Maybe LucasArts and Disney would reconsider, and release it to the world - as Day of the Tentacle has countless fans.