Great question Crash! I checked with the devs and I would recommend holding your lockout. I have no confirmed release yet but we are trying our best to get it out ASAP, like Jeff said, this week! Hopefully I will have more information on the 2.2 release very soon.
To reiterate, if you want to hit NM TFB this week I would recommend holding your lockout. I will update as soon as I can, especially if that changes!
Why don't you just put it on a different lockout all together ? It is a different difficulty with new gear...