I'm feel certain that Sony is looking into a PSP-2. I'm also fairly certain that its not even complete on the drawing table yet, and that its not "coming soon".
The PSP-1 has been wildly successful, given Nintendo's absolute dominance of the handheld market... basically forever... until recently, where their dominance has waned from "absolute dominance" to "pretty much mostly sorta dominance".
I will score a PSP-2 the day it shows... or within a few months anyhow. I hope it has UMD BC.