It seems the The Sandorff Brothers have parted ways with the Nekromantix. This is what Kim Nekroman had to say on the Split:
NO Nekromantix has not broken up and yes Peter and Kristian has left the band.
Peter is an amazing guitarist and Kristian a fantastic drummer. But the Nekromantix has done great without them before and I have no intention of letting the Nekromantix stop because of this!
New members have already been found and will be announced soon