Steam Early Access games can now have a planned release date listed

Answering calls from developers, Valve have tweaked Early Access game pages to allow developers to add a full release date. Just like Coming Soon pages can list an exact date, or a period where it may release, Early Access games can now do this too.

Should hopefully help prevent a little confusion for potential purchases, and just allow developers to be a bit more upfront about how long it might take. Or, if a game is releasing soon - just a simple way for you to see. Developers aren't forced into using this though, as plenty won't know when it will be finished.

An example I found for you is Timberborn recently covered here on GamingOnLinux, which releases March 5th:

Valve said this about why they're adding it now:

Occasionally, developers with a game in Early Access would ask us proactively if there was any official place to display a planned 1.0 date. They wanted existing and potential players to know about their plans. Many studios were already sharing their 1.0 dates in other places-- within the text description on the store page, via Steam Event news posts, on social media, in their forums, and so on.

Last year we introduced the Steam Personal Calendar, and realized one valuable kind of 'release' was missing from the UI: upcoming transitions from Early Access to 1.0. With an official 1.0 date display, we could give those transitions an official display in Personal Calendar, and help address the developer requests around formally showcasing the planned 1.0 release.

Source: Valve