Following the revelation of plans to bring UNCHARTED: Legacy of Thieves Collection to PC, the Steam Listing for the bundle is now online (thanks MP1ST). A release was promised early next year, but the listing doesn't narrow that down, simply showing a 2022 release date. Here's part of the description:

Seek your fortune and leave your mark on the map in the UNCHARTED: Legacy of Thieves Collection. Uncover the thrilling cinematic storytelling and the largest blockbuster action set pieces in the UNCHARTED franchise, packed with all the wit, cunning, and over the top moments of the beloved thieves – Nathan Drake and Chloe Frazer.

In an experience delivered by award winning developer Naughty Dog can, the UNCHARTED: Legacy of Thieves Collection includes the two critically-acclaimed, globe-trotting single player adventures from UNCHARTED™ 4: A Thief’s End and UNCHARTED™: The Lost Legacy. Each story is filled with laughs, drama, high octane combat, and a sense of wonder – remastered to be even more immersive.