I've seen a lot of suggestions for replacements (either already out there or just an idea) since yesterday which want to blend social networks with RSS and personally it seems like a terrible idea[1]. I can't be alone in just wanting a news feed and not some mashup of the news and what's being talked about.
[1] - I realise the irony in complaining about not wanting social news yet still following personal blogs, but they're a known quantity. If I want socially filtered news I'll go browse Reddit.