It's been a while since the game is available and this question might already have been asked, but... There's a downloadable content checker in the menu, so I thought there would be some... Because even if the game is already very good, it would be great to have some new blueprints or features to renew the pleasure to play it... Why not different maps, or an ability to join towns between them ? Because once you've understood how to get fast to the end, there's not much anymore things to do (and I've got all the achievements so no really need to play online to...)
So does anyone know about DLCs that could be available sometime ..?

What I'd like to see, DLC-wise, are different texture sets. Right now the game is set in a typical fantasy-type world (i.e. middle ages look, feel, etc.). I think it would be nifty to have our giant be one a different planet and the keflings were aliens, the buildings have a more "alien" look about them.

This is easily  my favorite arcade game and one of my favorite all-around games. It'd be awesome to see some new content for it.

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There's going to be new maps soon.  I don't think there will be much else added.
source:
http://www.ninjabee.com/forums/viewtopic.php?f=11&t=15571

That's already a great thing and I can't wait to download those new maps. I hope they won't be too expensive though, especially if there are several maps separated and not in a "map pack" or something...
I still hope that there would be new blue prints if the new maps have a few success, it could push ninjabee to work on that...