Answering a fan request on the Capcom Unity forums, Svensson denied that any new content would come for the 3DS version of Revelations in the form of updates or DLC:
Sorry guys, but there are no planned updates for the 3DS version of Revelations. We’ve added a fair amount of new content to the new addition which is fairly common to do.
Rachel will be playable in the HD remake’s Raid Mode, along with series favorite masked man Hunk. Other additions include a new enemy and difficulty level. The Wii U version will also incorporate Miiverse, with the ability to share “death messages” and post speech bubbles above various abominations in the game.
If you’ve previously played Revelations on 3DS, do the upgrades entice you to dive in on another system or has this ship already sailed? Resident Evil: Revelations HD is scheduled for release on May 21st in North America and May 24th in Europe for the Wii U.