Nighthawk/Bob Marvel conversions

Any word on the street about the Nighthawk conversions? How about the version Bob Marvel apparently will offer, again? Will Nighthawk have a rib for dot mounting?

I'm lucky that I didn't hold my breath for the Bob Marvel conversion I ordered a couple of years ago. Still waiting. G&A has an article comparing some 1911 .22 conversions and complete guns. It is interesting.