PS Vita will launch in Japan on November 12, according to an unconfirmed report on GamAlive.
The site claims global press outlets should also have received Vita units by that date, and that the system is expected to be released in the West in March, shortly before the end of Sony's fiscal year.
Sony will reportedly be bringing 18 unannounced Vita games to the event, which kicks off on September 15.
Vita has "a better chance" of success than Nintendo's 3DS, EA Labels president Frank Gibeau told CVG last month.