While this isn't a guarantee that you'll get updates, you can definitely get a moto g (and a pile of other phones) without any carrier customization now as a "play edition" phone[1].
I'm going to get a Moto G, I was considering it a few days ago even though I don't really need a new phone (Nexus 4 has been dropped, thrown, and ran over a few times, put a screen protector on to hold the glass in place).
I'm going to get a Moto G, I was considering it a few days ago even though I don't really need a new phone (Nexus 4 has been dropped, thrown, and ran over a few times, put a screen protector on to hold the glass in place).