Coming from 13AM Games...
On EU release:
Runbow is coming to the European eShop VERRRRRY soon. We actually just got the game approved for the NOE store today, and we will be able to announce the date on Sunday. I can confirm on sunday if you follow us on twitter, but let me just hint... it's very soon.
We had such a good time working with other Indie Devs... what a great community to be a part of. We would of course work with people if the opportunity came up. We'd love 3DS, but we've got to wrap up this console first.
On a potential sequel:
We're still sore from making this one... but anything is possible. We would love a chance to build this thing from the ground up as opposed to in a post-jam hurricane.
On new content:
We're planning new content right now and we'll be making announcements very very soon. Suffice it to say we will continue to fix issues if there are any, and we want you guys to know that we are appreciative for all of your support. Definitely new costumes and levels down the road.