Darvond: To reply to your question, the transition from Myst to RealMyst is a literal leap from 2D gameplay to 3D gameplay. You could call it an 'update' if you wanted to be crass and cynical, sure. As for Real Myst Masterpiece, I say there's far worse ways to celebrate the aging of a franchise. Like Sonic 06.
Ha-ha, I'm showing my noobness, sorry, but I have no experience of Sonic 06 either. ;-)
I apologise if my choice of words seemed either crass or cynical. That wasn't my intention, especially since I haven't yet played the game myself. But the release of the Masterpiece edition for RealMyst, does seem like another bite at a cherry that's already much-bitten anyway, particularly when people seem to be describing the Masterpiece edition as mostly a bug-fix for the first Real Myst.
If I had realised all of this before purchase, I probably wouldn't have bought RealMyst anyway, and just stuck with the first version of the game. My fault, perhaps, for getting click-happy on the purchasing and not doing enough research in the first place. GOG doesn't help, though: a search on the term "Myst" doesn't bring up the new "Masterpiece" edition of Real Myst, but only the ordinary Real Myst. Not sure why that is.