Right now we were told there are no plans in place for a North America unlocked and unbranded Note 7.
So, basically, "We have nothing to share at this time" but in a more polite way.
If it were me, I'd buy a T-Mobile model, get them to unlock it, then disable as much of the crap as you can. You'll still have to wait on T-Mo for updates, but they have the least amount of stuff you can't disable from what I'm told. There's also a janky root method using Sprint pre-release test files out there that works on the T-Mobile, Sprint and AT&T version if you wanna go that way. This way you get a phone that works on every GSM network in North America, and will work for calls and at least 3G data everywhere in the world that's not Verizon or Sprint or some goofy network in Russia.
An international unlocked model is going to be missing some LTE bands for North America and (especially on T-Mobile) will revert to 3G is a few places. If you're good with that,
B&H supposedly is getting them in a week or so, and they are great with warranty claims (personal experience). I'm sure other people have other suggestions as well.