A live YouTube channel should make for easier viewing if you're a night owl.
Sony's keynote is on the 15th at 8AM UK time, 4PM Tokyo, ahead of the show, so expect a busy week of news. Even if, by some miracle, there is a new or better Vita model announced, I'd bet now that it won't be coming west. A live countdown and video stream is on the Sony site.
Let us know if you have any hopes or expectations for the Vita?
UPDATE: Looks like Japan's Danganronpa Twitter account is very keen for people to check on on the Sony show - with suggestions that Danganronpa 3 could be announced.
今週は『SCEJA Press Conference 2015』やら『東京ゲームショウ2015』やら『希望ヶ峰学園購買部 拡大版』やらもりだくさん…なんでこんな時代になっちゃったのかしらねー。https://t.co/6GKTJ8SUtx I #プレイステーション0915— ダンガンロンパ 希望ヶ峰学園購買部 (@sp_kiboukoubai) September 14, 2015