The Nexus line will come to Verizon when it's in the best interest of
both companies. Right now, Verizon would make little to no money off of the Nexus devices when compared with the other, big-name, heavily-marketed devices like the Galaxy S4 and RAZR MAXX, to name a couple offhand. Furthermore, Google did not/does not want to create multiple hardware versions of the phone just to support big-name carriers in the U.S. such as Verizon. Andy Rubin has somewhat explained the reasoning behind not having an LTE version of the Nexus 4 in the past.
Now, as androidluvr2 and bigdaddytee pointed out, Verizon is moving to phase out the older 2G/3G networks and move entirely over to LTE, paving the way for LTE-Advanced deployments in the future (which will be awesome). This may well work out in our favor, because Verizon's LTE is part of the 'C-block' spectrum that has open-access regulations tied to it. These are the same regulations that are intended to govern hotspot usage and fair data usage ? essentially that you can use your data cap however you want, and data use on that spectrum cannot be discriminated against by type (video streaming, social networking, gaming, tethering, etc).
Read this article on The Verge:
Slow lane: why Google's new Nexus 4 doesn't have LTE | The Verge
But the rules have turned out to be virtually meaningless in practice, as Verizon uses 700MHz in conjunction with CDMA spectrum that doesn?t have similar open access rules ? so while Verizon might be legally required to support an unlocked LTE device, the legacy CDMA network still effectively keeps all of Verizon?s phones locked.
[...] it's still a nascent technology with significant interoperability problems across many spectrum bands, requiring companies to create different hardware variants of their phones for each network. Profitably building all those variants requires either financial assistance from the carriers or a large addressable market for an unlocked device. So while Verizon has by far the largest LTE network in the world, covering over 400 markets and over 250 million people in the US, Google has no access to those customers.
Here's the bottom line:
Google may be getting serious about selling hardware with the Nexus 4, but not so serious that it's willing to compromise with carriers, and compromising with carriers is the only way to make LTE work.
And the quote from Andy Rubin for more detail:
?We certainly have a desire to offer devices on every carrier on the planet,? Rubin said. ?The tactical issue is GSM vs. LTE. A lot of the networks that have deployed LTE haven?t scaled completely yet ? they?re hybrid networks. They?ll do their old thing and they?ll do LTE, which means the devices need both radios built into them.?
?For now we?re gonna sit back and watch those networks evolve. Two radios in a device right now certainly raises the cost, and diminishes battery life.? This point seems to frustrate him. ?When we did the Galaxy Nexus with LTE we had to do just that, and it just wasn?t a great user experience. It?s possible to do it right, but that?s not where we?ll put our resources initially. Tactically, we want to make sure the devices are available for every network on the planet.?
Last, but not least, here's a link to a post I wrote back in December about the same issue:
http://forums.androidcentral.com/ve...l-vzn-ever-get-another-nexus.html#post2457985