The Stanley Parable: Ultra Deluxe has been pushed back to 2020
The game should roll out before summer kicks in, though.
Even though Galactic Cafe and Crows Crows Crows were initially aiming to re-release their indie masterpiece, The Stanley Parable by the end of 2019, the project has been pushed back to 2020.
We got a video below explaining that the team is targeting a new release video "sometime probably before summer (2020), but it sort of depends on the specifics of how development goes". Basically, the team needs more time to prepare everything and this is not strange at all. We can just hope that, when the final product eventually arrives, it will definitely be worth waiting.
The Stanley Parable: Ultra Deluxe will include new content, several new endings, and it is developed with the Unity engine in mind (to ensure that porting is as smooth as possible).
You can watch the announcement here: