IDG Entertainment is running into a little trouble crafting "a follow-up to the now-defunct E3 Expo." Firing Squad is reporting that Sony Computer Entertainment will not be attending the upcoming E For All Expo.

Along with the major console maker, publishers NCSoft, Sega and Capcom will also be missing the October show, according to FiringSquad. The show won't be a total bust, though: Nintendo and EA will be there, along with THQ, Konami, Namco, Intel and NVIDIA.

These losses are a pretty major blow as the new show tries to become a must-attend event. Any show that's going to replace E3 is going to have to quickly build up to a critical mass of publisher attention to draw in the press and consumer interest that makes an expo work.

This article was originally published on Joystiq.