Tim Bray, co-creator of XML sees the future of RSS consumption as moving from standalone clients to being built directly into browsers.
“this stuff just belongs in the browser”
I see the issue as being client v. server side. Although RSS readers are currently very useful, they are akin to client side Usenet readers that were built into browsers and email clients. As the volume of RSS grows, I would rather use a web based interface to RSS in the same way that I now use Google to read newsgroups.