Many thanks to Kazu 1968 for spotting this one
About halfway down an article in sponichi is a little blurb saying that Kashima is angling to pick up center back and life long Verdy player Kenta Togawa
This would hurt the backline pretty badly, arguably Togawa has been the most consistent defender this year. Really except for his stinker in Kashiwa and a few other dog performances he's been pretty strong.
I don't know if this will be a situation where Ishikawa is given to the club permanently in exchange or if some sort of loan deal is worked out.