Windows 8.1 resulted from the major, MAJOR challenges in and feedback from the Windows user community. Windows 10 is already miles ahead acceptance-wise, and given MS's determination to not have 'another Windows 8' from a quality perspective, I expect Win10 is also a very different proposition in that respect. There may not BE a Windows 10.1 in the short-medium term - I think they will just release a steady stream of Windows Update patches rather than another monolithic download, so I am not sure there will be anything really identifiable to wait for. I think the updates will come thick and fast over the first couple of months but I think what you get when you upgrade to Windows 10 today is pretty much what we'll have for quite some time.
So, I think Dave and team have to make it work, at some point or other, with Windows 10 as it...I suspect he will want to - and should - focus on continued functionality improvements and additional licensing streams for as long as he can before diverting time and energy to Windows 10 compatibility (I am assuming that would be quite some task by the time it was properly researched, scoped, developed, tested, beta-ed, released, etc., etc.). Perhaps it's worth a poll in terms of where the CO2 community would like this to fit in terms of priority.
Myself, I'm fine
I stuck with Windows 7 on both home desktop and work laptop (its actually our SOE in the enterprise) with only a few Surface Pro users running Win 8. I am waiting for the next gen Surface machines with an i7 processor and more RAM before I trade in the trusty lappy and move everything to Win 10.