My UK f2p char was at 230 scrolls in kage, with the previous rare pulled at 210 scrolls before 3.0. She pulled mei at 270 scrolls post 3.0.

My LA f2p char was at 770 scrolls in kage, with the previous rare pulled at 760 scrolls before 3.0. I'll try to pull during the next rebate, but unlikely to get enough scrolls for the next rare.

My main in LA stopped pulling kage a few months ago, currently not even half way to the next rare from free draws; pretty much no chance to see a rare anytime soon.

I ended up getting a bee dupe at 50 scrolls on my f2p LA char as the 16th kage rare.

So from my personal experience, kage hasn't changed.