Thanks, that is exactly what I meant. Buick will essentially pickup where Saturn left off and get the next version of the Opel Astra. As pointed out, saying Opel Astra would likely likely lead to reader confusion. I attempted to infer this with "next generation Astra" tag but I can see how some people might not get appreciate it.
To be honest, I was busy asking my GM contacts about the event and why I heard about it on Twitter and not in a press e-mail, so I was distracted.