Yup, particularly on the higher end, the rMB with 512GB of storage and 16GB of RAM is the exact same price as the MBA with 512GB of storage and 16GB of RAM, but the Air has 2xTB3 to the rMB's 1xUSB-C and a much better CPU and while it's bigger, it's pretty damn close. You have to really need that extra size reduction to want the rMB at this point
Not necessarily. My wife is one that loves her rMB and will have no interest in moving to a larger machine. And for all the ones crying over the 11" Air, they should lay the 12" on top of it and see that the 12" is very nearly the same dimensions but with less weight and MUCH better screen. I think that a 12-13.3-15 makes for the perfect range of sizes and the power is now nicely aligned as the sizes grow. The jump from dual core Air to Quad Pro makes perfect sense. I don't see the nTB sticking around long.
Funny that I see no one commenting on the coolest addition which is Touch ID without a Touch Bar! I actually like the TB on my 13" but I do see that as a really nice package.
As to the keyboard, as usual lots of folks crying about yesterdays news. I've not see any major issues with the Gen3 keyboard. But then I never had a glitch with my Gen2. Maybe not a Thinkpad keyboard, but not bad either.
As to ports, 2X TB3 is a HUGE upgrade over the 12". I do wish they were one on either side as TB3 cables can be short to connect docks unless you spring for an active cable, but I never need more than 2 devices connected.
I love that they have stuck with TB3 over USB-C. I am seeing more and more PC's abandoning the legacy ports as well. Kinda fun seeing all the Surface fans wringing their hands over MS still hanging out in 2015 with still NO TB3 on the surface line. That's crazy for a high end machine!