Please don't trust what they say. They are guessing and really don't know. They want to placate you by saying maybe and probably but the reps simply don't know anything.
What I do know is Verizon has abandoned this phone and removed all mention of it on the website. I would love to believe that they would update the Z3v but seeing that they promised us simultaneous voice and data by end of year 2014, and haven't done any updates since January, I am dubious.
The person I spoke to on the phone from Verizon was actually a phone tester. He explained to me T-Mobile hasn't done it yet either, but rest assured I will have the update one day.
Verizon's lack of support for this phone, both in advertising and software, has been astonishing. With multiple carriers carrying basically the same phones, with slight differences, you would think Verizon would have saturated the market in advertising to make it stand out. Instead, they retire the phone after 8 months. I am not holding breath for lollipop.