gulu gulu has announced on their official Twitter that they've been trying to get in contact with kazari, but no luck. They went to his home and nobody was there.
Their live today will still take Place but without kazari.
Furthermore, I've not seen a thread on this but at their one-man in January, ai announced in a MC that they are to release a CD during spring. They never specified date or month, but it is very likely in April/May. The band hasn't posted this on SNS or talked about it elsewhere, so it's difficult to pick up unless you're there, I guess.