Well, it seems to me from what I've read that he's preparing for Ikki to surpass him. He knows that he'll never truly find the sky but he thinks that Ikki's able to, so he might at least help him in some way in order to further the "New Generation" theme that we've been seeing.No, Kilik doesn't seem like the sacrifice myself for the greater good type of character.
I don't think so. Mentally, Ikki is in just as bad a place as Kazu right now, with both of them having received a huge shock to their systems. When they get over it though they'll be much stronger since they'll finally know what they're up against and have motives to be more powerful. We haven't checked in with the rest of Kogarasumaru in a while, so I wouldn't be surprised if they'd developed some new powers while everyone else has been going about their business.But one thing we know is that kogarasumaru has been rendered useless except for Agito, because Kazu is a mess and is too much of a wimp to contend with Genesis, and Buccha just isn't at that level yet.