OM-D E-M5, m.Zuiko 12-50
And a decision has been made. It's not quite what I was considering but looks to be a solid option.
The decision is to have a m43 system alongside the NEX system. Why m43? It's the system which fits my overall needs the best, every other option I was considering would have relied on the NEX system to fill out part of my requirements, the m43 option fills all my needs.
Why keep the NEX? I like playing with adapted lenses. I like manual focus and the NEX does that best. And I just gosh darn love my NEX-7 and ZA E 24/1.8.
I've got the E-M5 and 12-50 kit lens, which were surprisingly fully-funded by selling off the majority of my film kit. Since film is a limited interest to me these days and the kit I sold is relatively easy to replace this is no big deal. What did I keep? The Bessa R, my 2 RF lenses (CV 35/2.5 and Nikkor-S.C 5cm f1.4), one Maxxum 7, the Sony 85/2.8 and the long-nose Nikkor 50/1.8 AI. The 50/1.8 and 85/2.8 will be primarily part of my NEX-7 kit.
What do I intend to do with the 7? I'm going to add the 16/2.8 and at some point replace the Nikkor 50/1.8 with an A mount solution so I can standardize on the LA-EA1 adapter. I'll probably look to acquire some sort of 35mm that's A mount compatible as well (so I can have a usable kit for the remaining Maxxum 7, 35/85 covers my basic needs just fine).
As to the m43 stuff, I plan on sticking to native, AF glass. And pretty much all my needs are covered there anyways now that Oly has a 17/1.8. First steps are a wide and a fast normal, probably the 9-18 (half the price of the 7-14 right now) and the PL25/1.4 (stupid cheap and doesn't duplicate the 24 on NEX). After that will be a tele, either the 75 or the 60 macro. I'll probably also grab one of the cheap Panny OIS telezooms to try and probably swap that to torfindra for her 4/3rds adapter and Oly ZD 40-150, she gets IS, I get a lens I rather like back.