I just saw the film Iron Sky yesterday and have to say I was happy to see a shattered horizon being created there...a nod in your direction, I'm sure :)
We're not sure, but we also noticed this. For those who haven't seen the film (which you should go see!), it is possible that the gratuitous mega cannon "test firing" was a small in-joke towards Shattered Horizon - specifically the line about "making a new horizon" and the obvious results from the blast - made visible from a distance at the very end of the movie.
However it may be, it would be great if you did a skin pack or free update where you could have the other team with Nazi suits and the other with allied or something that would link back to the movie ;)
It would be hilarious if done in the same style as Iron Sky and using the humor of Unstoppable Gorg
Actually joining together SH and Unstoppable Gorg would also be amazing!