I just read an article that company's like Suzuki have reverted to selling what's been selling best - mid-size cruisers. They've even introduced a new bike toward that end. It will be difficult to gauge what this latest round of economic issues will do to the bike manufacturers until springtime arrives. For now, most dealers, like my local one, are focusing on ATV's, snowmobiles, service, bike storage, etc to keep a healthy bottom line.
I think most of the American manufacturers, including HD, will be okay if they agree to bite the bullet, declare bankruptcy, trim the fat, and become "leaner and meaner". Asking for handouts will do nothing more than allow them to continue business as usual, which has been a dismal failure.
It wouldn't hurt to watch HD. Word is, $10/share would be a good purchase price. They can keep their bikes though.