I would have to say that this would be the perfect time to get rid of the 1990 split grill design, and incorporate a new more square, recessed grill. Just before the new GTO, and the new Grand Prix come back out, a simple facelift could be perfect for excitement. I do like the idea of the Commadore in Pontiac badging, but what I would really like to see is a new car made in the US, that appeals to the Aussies. Get them to rebadge our stuff.
Keep it angular. and original, that's what sells. Maybe bring back the two lines on the top of the doors from 68-69 GTO, and maybe do the pinch up on the sides of the hood, since everyone else is just letting the sides fall off. Making something new, original, and attractive is always what sells a car. If Pontiac is going to not advertise a car, they need to make the cars so nice that they can sell themselves.