The intent behind the remakes of Grim Fandango, Day of the Tentacle, and Full Throttle comes from a spirit of preservationism more than anything. The idea was to make these games easily purchasable and playable by modern audiences while keeping as much of the original games intact as possible. So you get things like cleaner audio, uprezzed graphics, simplified controls, and so-on, but nothing that radically changes the games.
As someone who has the original game CDs and played through each of those games at least 10 times over the years, the BEST part of these remasters, IMO, is the added developer commentary. I really, really enjoyed playing through the Monkey Island and Grim Fandango remakes and hearing Tim and crew's thoughts, remembrances, jokes, etc around the development and production of the games, the music, the characters, etc. Really added something new and special to the playthroughs of games that I know like the back of my hand, like old friends.
