I think it would be nice to have the brand back, but then, I am a sentimental type of guy, and my wife says if you want to have a definition for “sentimental” just drop everything in front of the “m”. My dad was a Pontiac guy. Maybe the reason I miss Pontiac so much is partly because I miss my dad; I really cannot think of one without thinking of the other. If anyone over at GM is serious about bringing it back, there needs to be some pretty firm rules.
1. No ugly plastic flop-along-as-you-drive-down-the-highway plastic crap on the exterior. For that matter, get rid of the plastic inside as well.
2. Pontiac needs to be Pontiac. Sure, interchange the invisible stuff like steering wheel shafts and electronic gizmos. But keep the engineering an design separate from the other brands.
3. No boats-to-bobsleds thinking. You do not need to build every class of vehicle to be great. Pick a niche (i.e. the performance division) and go nuts.
4. No GTO rental fleet models. The recent GTO was a joke. My wife said it looked like a rental. Ford showed the heritage in Mustang, but it was as relevant to speed freak as it always/ever was.
I am sure there are folks who can think of other rules, but these would be a good start.