I think there's some confusion here ... lol

Yeah, if you're talking about a possible sequel, which we're totally not working on right now, but maybe at some point in the future... then yeah, there are some ideas where it would take place. (the secret ending hints at part of it)
If you're talking about Aquaria version 1.1.0, that's a patch that adds a bunch of features to the game. It doesn't add new areas or story, its improvements to the existing game.