So far I have been playtesting C3/DS - for this release, it has been retitled as Creatures Docking Station and Creatures 3 will be included as paid DLC, with DS being free-to-play, as it was originally released. There are numerous fixes present, such as the Bramboo fix, which were inspired by those created for the original game's release, and new ones, such as expressive breeds no longer being listed separately in the egg layers and being used as the default breeds.
Probably the biggest advantage this release has is it no longer needs to be installed to My Documents, which was a major pain in the Exodus release of C3/DS, as it meant that if the player installed the game somewhere such as in a folder under Program Files, any files extracted from agent files would be dumped inside a folder within My Documents, and the game would experience errors as it would't be able to find them. I have no idea why this issue is present, but it was most likely a failed attempt at allowing multiple users on the machine to have their own sets of addons and worlds.
Creatures Docking Station will be released on the 6th of December, but there are currently no confirmed dates for the other two games, apart from they will be released in December as well. If you want further news I highly suggest following Critter Consortium (the people behind the port) on Twitter. I may also make further blog posts, so keep your eyes peeled.