2025 is coming, and perhaps in the same year, one of the most important things that will coming to the game is shown in the following image:

This pixelated image shows the silhouettes of a pair of mysterious characters that will appear in Randy and Manilla's next major update.  
They are scheduled to be released at the earliest between mid and late 2025.

For those who don't know, this update is part of the first block on the roadmap:

But as I explained in the Quantum City update, its development will be much longer and more ambitious. I hope your wait is worth it.