I tend to agree with you 1TC, development of M1 seems to have ground to a halt over the last 6 months. No announcements on the M1 blog since Sept 13 my gut feeling is we will not see a V3.
Would be a utter shame as M1 is still by far the best app builder out there by many miles. The only one which for me comes even close is appery.io but even then its nowhere near as nice to use and develop on as M1.
I suppose only time will tell. Oh how I miss my Flash professional………… Things where so much easier then.