I agree with you on your first point, about how Ganishka is drawing another world into the physical world. We've been talking about that since ep 295.fuxberg said:Perhaps Griffith has the Messias Complex and really, really wants to save everyone after all hell has broken loose, since he failed his goals while he was still human.. We can even speculate that he'll kill off all the apostles that befriend him (similar to the BoH's sacrifice).
Would that be coherent? Didn't SK told Guts that time isn't a cycle? (or something like that, i can't really remember).
But some other things in your post don't ring true to me and are not coherent. First of all, Griffith is no longer a human. He's a demon overlord with a human candy coating. Why would he want to rescue humans? His goal has always been to "just" get his kingdom, not rescue anyone. And as for killing his apostle army "similar to the BoH" this is a very far fetched idea in more ways than one. I don't feel I need to elaborate on why.
And it was Flora who told SK that Causality was not a cycle, but a spiral (click for the source), meaning that events won't necessarily reoccur in the exact same way. I really don't think she meant EVERYTHING would be repeated, just major arcs in human history. There's a full thread going on right now in Spec. nation about this exact topic, so if you want to post about that, please go here: http://www.skullknight.net/forum/index.php?topic=9533.0