MysterD: See, that's the issue here -
Quake: Offering on GOG is incomplete now, thanks to Beth-Soft and MachineGames updating this classic w/ Quake Enhanced/Remastered/whatever you wanna call it on Steam, Epic, and Bethesda.Net.
AB2012: Depends on the perspective. Quake The Offering (played through a decent source port like QuakeSpasm or vkQuake) offers exactly what it always has for that original Quake experience. That an EE is now available that offers some additional levels isn't necessarily always desirable if it comes with other strings attached. Analogy : Neverwinter Nights Enhanced Edition offers more content than Diamond Edition consisting of newer modules. That doesn't mean Neverwinter Nights Diamond Edition is "crippled" in any way though for continuing to offer what it always offered if that's all some people are happy with.
Another thing I haven't seen mentioned in the discussion is that sometimes people can have a preference for the "feel" of a particular engine. Eg, I love the "feel" of GZDoom engine and the Dark Engine enough that I wouldn't want a Doom Unity or Thief Unity based Remaster even if they did come with extra levels. So personally, I'll be sticking with vkQuake whether QEE comes to GOG or not.
Until modders or someone update those Quake Source Ports/Engines to actually support the actual new content, then Quake: The Offering still feels like it's still incomplete now - no matter how good, bad, or whatever the new content is or isn't.
Quake Remastered/Enhanced is now offering more content than its older version. Worst of all, Quake Remastered isn't here on GOG yet and I don't think any Source Ports added support for that new content yet.
Same can go for NWN:EE content not brought over to Old NWN: Diamond copies; and also all of the new DLC's that got released for Titan Quest: Anniversary (Ragnarok, Atlantis, and now Eternal Embers) which are NOT even in the Original TQ: Gold version - these older editions are lacking some of the newest content that are actually found in some of these newer Remasters.
For example, here's one great thing w/ a source port for Duke Nukem 3D Content - EDuke32 Source Port actually has support for running Episode 5: Alien World Order from DN3D: World Tour Edition.
Personally, I'd love to see VKQuake, Quakespasm, Darkplaces, or any of the Quake 1 Source Ports add support for the new content exclusively found in the Quake Remaster.