Don't expect another SocketA processor, at least one better than the 3200 XP. Some of the new Semprons are SocketA, but obvisuly aren't gonig to compete with the 3200+ XP. Then the higher up Semprons (which still don't really compete with the XP) are Socket754, so AMD has essentially moved away from SocketA.
I don't think any official word has come about this, but this would be my best guess.
Like mentioned below, many of the XP chips overclock very well, I run my 2800+ XP (2.08 ghz) at 2.6 ghz.
My Desktop: <A HREF="http://Mr5oh.tripod.com/pc.html" target="_new">http://Mr5oh.tripod.com/pc.html</A>