Yes, it's not April Fools'… A few days ago I decided to ask the movie's distributor in my country about the release date and hoped they'll share the secret with me. Well, they did! And somehow it didn't make me happy… See how it went:
Translated version of the conversation.
So, to make things clear, the movie might have been pulled back all the way to the late 2015/early 2016. Now, it's not a 100% sure thing, the distributor might have old information (though that's unlikely), the release date could still be changed and maybe this is all just some sick, late April Fools' joke. The final confirmation will come (soon I hope) from the movie's creators themselves. Until that happens, let's just all stay calm.
And to those who celebrate it, I wish Happy Easter :)