Hey Gladi, thanks for asking this important question 
Before going into what we will do next, it might make sense to discuss who is doing what!
Martin is working pretty much full time on the new AirlineSim Technology Demonstrator for the forseeable future. He will be available for consulting in technical and game design questions though.
Fabian is also working on the ASTD, but not full time. He will do PrUn game design and also help out developing features.
Nick and Lena are also working on both projects, in marketing and communication.
I will be focusing on the PrUn development.
Here is what we decided to work on in the next months. Please take it with a grain of salt, as we (as usual) might change plans if necessary:
Maintenance (maybe named) release
The next release will bring a lot of bug fixes for both the mobile and desktop version of the game. Feature-wise it will incorporate the new maps (done) and a change in taxation (currently working on) and governor programs (scheduled for next week).
Faction Expansion Challenge
After the release we want to resolve the Faction Expansion Challenge.
Steam Release
The Steam release is the most important project in the first half of this year. Besides implementing the actual Steam client and integrate with the Steam platform we also have to implement a few features in the game to be able to handle a potential large influx of new players. We also need to adjust a few things in our accounting backend for Steam to work. A rough estimate done by Martin an me shows that this will keep us busy for quite a while and we want to evaluate whether or not Steam brings in new revenue rather sooner than later. This is why Martin referred to “cutting features”. If we have to release the first version of the Steam client without achievements and Steam works for us, then we will add it at a later point in time.
Beyond Steam
Now we are in territory that is usually marked as “Here be dragons” on a map. We do have the governance and infrastructure updates designed and “only” need to implement them. We can’t foresee what will happen after a steam release though and this is why we didn’t make any concrete plans for the time afterwards!
I hope that it is a bit clearer now where we are headed!