Sgt_Kickaxe - 8:20 am on May 27, 2010 (gmt 0)
Google makes over 300 small changes per year to their algorithm and those are rolled out unevenly (physically and in timeline) so attempting to label certainties in a state of flux is futile.
You CAN save the backlinks IF you put up the same content on the same url's and do so before they are deemed gone. You must restore ALL pages otherwise you disrupt the internal link structure and your link tree is broken. If you buy a domain in hopes os salvaging pagerank you buy the whole. When you attempt to shift the rank elsewhere you poison the tree. There are better ways to get ahead.