As revealed in the latest Elder Scrolls novel (reading is important, kids), Bethesda is working on a sequel to Elder Scrolls IV: Oblivion. While there's still no name given, the word is that Elder Scrolls V will be unveiled at E3, despite Bethesda maintaining that they're going to the LA Convention center with nothing new to announce. According to a Famitsu scan, Bethesda is, indeed, prepared to bring some big things to E3, and all signs point to a return to Tamriel in the near(ish) future.
Seeing as it has been four years since the last Elder Scrolls game (which, in turn, came out four years after the previous Elder Scrolls), it wouldn't be a surprise by any means to hear that Bethesda is planning on showing off something for the fifth game in the series. Whether or not it means Elder Scrolls V or the rumored Elder Scrolls MMO, a piece of speculative software that has been making the rounds for some time now, is yet to be seen. Either way, we'll be sure to press the subject when we meet with Bethesda at E3 this year, where we're going to get a look at everything they're bringing to the show. Hopefully we'll bring some good news back with us.
We went ahead and contacted Bethesda for an official statement, though we're pretty sure they don't comment on rumors or speculation.