It's great to hear from Scawen and get an clear picture of the situation.
Reading between the lines, I get the impression you don't want to release any new intermediate content, for fear of reducing the significance of the next update. That's understandable.
What I don't understand is why this policy continues, with respect to history. Several good (road) tracks (within the existing model) could have emerged in this time. Why not release a paid content update, while dev continues on more diffcult updates.
This would satisfy your financial needs and the communities needs.