i hope we see more white hair j like he looks cool asf

There'll be plenty of him in the future

OMG YAY!! how far from this point like approximately? like are we relatively close or is there still a lot that needs to happen?

As far as I remember it's like a few chp away

There is a good reason for white haired J, an important plot point. You'll see it more often as the story progresses + when we have flashbacks.