He's indecipherable. We have no idea what he's doing or what he wishes to achieve. However, the way Blackcoin is  setup means that he doesn't  rule the coin. A few months ago the network already voted on Janko's build to continue so he's pretty much of the game. That is, unless he wishes to cooperate again. There's no point in burning bridges either, the guy did create the most solid form of Proof of Stake after all.  

Blackcoin keeps being cloned by very new coins: