I think it could be a really good idea if you guys were able to release a new demo build before the Kickstarter runs out. If you give it a few more maps (new tileset) and features, I'm pretty sure the release will be covered on gaming sites like RPS and social media like Reddit. More exposure would mean more Kickstarter funds. The big question of course is how much is release ready at the moment? A map pack shouldn't be too hard though.