Yes I do think they plan on doing away with the higher voltage devices due to problems with batteries and the atomizers.
I actually think it's a good move for the entire PV industry. With the lower resistance atomizers and now the 510 cartomizers, I never use high voltage anymore. I get longer run times and a milder, better flavored vape experience.
So, as far as a HV Prodigy, I think it's gone. As far as the Prodigy line, I think it'll be around for a while.