They'll announce the PSP-4000, which will be almost exactly the same as the PSP-3000, except that it will use the same accessories as the PSP Go. The PSP-3000 and its accessories will be phased out. This way retailers will be more likely to stock the PSP Go as they'll be able to make money of the accessories, and they won't have to stock two sets of accessories for PSPs.
That's just my prediction...







