Great. The Saturn experiment has been an epic failure. There are what, 450 Saturn dealerships?
450 dealerships x $1 million buyout fee = $450 million. Shut it down. (Unless there's no Buick-Pontiac franchise nearby - offer one). The no-dicker sticker is a failure. Only good thing to come out of Saturn is the improved customer service/dealer service (make this a hallmark of the new Buick-Pontiac franchise).
Send Opels to the Buick/Pontiac dealership, branded as Pontiacs. There are more than 1000 B-P-G dealership groups - get more exposure to these vehicles. Pontiac Astra, Pontiac Insignia (would compete with the Lacrosse/Invicta, sure, but make it more "sporty"), rebadge the next Vue as the Torrent (is Buick still getting a TE?), bring over designs for the Corsa and Meriva, and retain the G8, and you've just rebuilt the Pontiac franchise without spending more $$$. You've also tied Pontiac more closely to Opel and Holden (since Holden sells some rebadged Opels, as well as the Korean crap which Chevy should be peddling here), and given it the Euro driving experience which the GTO and G8 have finally brought to the brand (after many years of "wishing and hoping".
Pontiac's brand is damaged by selling cheap rebadged Chevy's, poor dealership experiences, and questionable styling. But Pontiac has history and heritage - something Saturn does not. Saturn still has the impression of cheap plastic cars. It'd be easier to revive Pontiac's branding than to completely change Saturn's.
Besides, would you rather that GM had a BP division or a BS division? Pontiac Custom S seems to have a lot of experience with the latter...