Added:
Titan Quest: Ragnarök

Removed:
Titan Quest: Ragnarök

Elminage ORIGINAL - Priestess of Darkness and the Ring of the Gods is now available on Steam

Thanks!

Added:
Elminage ORIGINAL - Priestess of Darkness and the Ring of the Gods

Since the three old Star Control games have been removed from the store, but the Stardock-created Star Control Origins still remains, you'll have to create a new section for them:

Star Control
Star Control II
Star Control 3 You can also remove these.

Thank you!

Added:
Star Control
Star Control II: The Ur-Quan Masters
Star Control 3

Removed:
Descent II
Descent 3
Descent 3: Mercenary

Added:
Star Wars Battlefront II (2017)

Removed:
LEGO Star Wars: The Video Game*
LEGO Star Wars II: The Original Trilogy*
LEGO Star Wars: The Complete Saga
LEGO Star Wars III: The Clone Wars
Star Wars: The Force Unleashed - Ultimate Sith Edition
Star Wars: The Force Unleashed II

*Removed because LEGO Star Wars: The Complete Saga is the superior version

Tokyo Xanadu eX+ was released the previous week on Steam.

Granted, the publisher did confirm an eventual GOG release, but nobody knows how long it will take.

Thanks!

Added:
Tokyo Xanadu eX+

Removed:
Carmageddon TDR 2000
Carmageddon TDR 2000: The Nosebleed Pack
Carmageddon: Max Damage

The Star Control games have been stealthily re-added:
https://www.gog.com/forum/general/star_control_1_and_2_being_removed_from_gog/post129

You can remove the section now.

Right, I actually knew that (but forgot to add them back due to Winter holiday). Thanks for the reminder!

However, I'm still unsure if we have the Star Control 2 remake "The Ur-Quan Masters" or not?

Removed:
Star Control
Star Control II: The Ur-Quan Masters
Star Control 3

GOG only changed the product name. The installer is not updated for at least 2.5 years.
So, I guess GOG do not provide the remaked version.

No, it's not included and considering its licensing status (can't be commercially distributed), I doubt it ever would.

Removed:
Outcast - Second Contact