What happens to Linc if Volvo moves up-market? It goes up-market as well. Despite what Minimum Bob says, successful American Luxury brands don't mean the death of the imports. I see Volvo and Linc having a relationship not unlike Ford and Mazda: different and distinct (meaning not re-badged) flavors of the same basic product.
I also disagree that the C30 needs to go. Having an entry-level vehicles is not a killer, as the tiny BM, Merc, and Audi models have shown. And it gives a good introduction to the brand for younger buyers/