By "fresh" you mean "lets make it random levels which you play without any real reason"? For now I think that current story is good enough, but idea of making random levels really pisses me off. Story doesn't have to be epic, I still think that even the first level of "destroyed carrotus overwhelmed by turtles" could use normal carrotus tileset, not some "destroyedcarrotuseditbykasiapl.j2t" to make it look epic.