Ok - I have all of my big-wing TIEs in display cabinets I can tell you that the new cockpit clearly does not match the ROTS-era Target Exclusive TIE, the White-ish/Gray TIEs from TRU, the Ecliptic Evader TIE or the SOTE Reddish-hue cockpit TIE.
To my eye and with the lighting I have in the basement, it looks like the cockpit is CLOSE to the TAC light-gray exclusive release, but not exact.
Unfortunately, I do not have all of my small-wing TIEs out but this light color gray that's on the Vintage Packaging Exclusive version doesn't seem to match any of those previous releases either - but I'm old and my memory for this kind of stuff is circling the toilet.
It does look like a very close gray to the light-gray TIE Bomber.
So for me, it's like Adam Pawlus always says, different enough to make you mad. The color doesn't match either of the two previous "Ejector Seat" releases of the TIE cockpit, so for that alone, it's "different enough" to warrant an opener purchase (to me at least).
Not sure if that helps anyone make a decision or not.
Now I have to wonder if the new Snowspeeder in the vintage packaging is any different that the regular Shadows of the Darkside release.