I don't think so. No response from Verizon, HTC or Microsoft when I have asked on Twitter. I'll be moving to the Lumia 928 due to HTC's lack of interest in consumer satisfaction and general communication.
I can get my upgrade as of today but out of principal I will be waiting for the flagship Nokia model rumored to be released later this year for Verizon. The lack of communication from HTC on the 7.8 update is annoying.