Verizon guys, I know it's a hard truth to hear but if you want maximum device flexibility you really are on the wrong carrier. Look all carriers are terrible, if you think Verizon is something special then you've really just fallen for their marketing. All carriers see us as money streams, they don't care to do us any favors, they just want our cash. So it's in your best interest (if your circumstances allow) to not be loyal to a carrier, you should really just move to AT&T. It's not that AT&T is the best carrier, they are just the only US carrier that has two very important things. Maximum device availability combined with a large robust network. Verizon has a large network, but they have device lock-in that screws you more than it helps you. T-Mobile has more device availability being on GSM, but they still have their limitations and their network isn't as large. Sprint? Lol just get off Sprint already, here in Phoenix they still don't even have proper 4G/LTE coverage in TWENTY FIFTEEN. You don't get a good network OR device flexibility.
Don't be fooled by the monthly costs seeming lower on other carriers, it's all about device costs these days anyway. And with AT&T you can control that cost more than on any other carrier since you can import phones or use just about any GSM phone (without fear of craigslist blacklisted CDMA phones). No I don't work for AT&T, this has just become clear to me after hopping from Sprint to Verizon to AT&T over the years. Don't be afraid to combine with friends to split the bill up more and more in order to drive down costs. I have ten lines on my account, only two of which are my own family, most of those lines are phones we brought to AT&T or paid off long ago. The lowest cost line right now is my sister who pays $27 a month for unlimited talk/text/shared 15GB data with rollover on a Lumia 920. 15GB suits all of us just fine, but my point is look how low that cost can be for great device selection and a great network. Buddy up with family or friends to divide up your costs and enjoy the benefits only AT&T seems to allow in carriers these days (especially for Windows Phone). Don't fall for the "I can save $15 a month on X carrier" if you're stuck wishing for a phone that isn't available to you. That $15 is easily worth it for daily enjoyment of the right device. Even unlimited data just isn't worth it anymore.
I hope this doesn't kick off a carrier war, I really just wanted to share my perspective having been on three different carriers over the last decade. I got fed up with Verizon for this exact issue, not being able to use the phone I wanted for no damn good reason. The only hope you Verizon guys have left is that the Lumia 735 seems to have the same bands, just focus on that and hope it comes through for you. I mean if the 950 doesn't explicitly call out the right kind of CDMA band, but the 735 doesn't have it listed either, that could bode well for you.
Good luck. Also for kicks here is a recent carrier comparison to help you make a decision.
Best Phone Carrier 2015 - Cell Phone Provider Comparison