Hokusai Grid - is a reference to katushika hokusai who was a famous artist in japan in the 17th and 18th century. his wood block paintings are very famous - the tidal wave is probably the most well known and he is considered the inspiration for modern day japanese comic books.
zaibatsu loyalty - refers to family run monopolies dating back to imperial japan. they were all "restructured" by the US after WW II but a couple still hold massive influence in japan and across the world. Mitsubishi is the one that comes to mind. in america mitsubishi is really only know for cars but in japan there are mitsubishi banks and mitsubishi heavy industries.
tsurugi - is a sword.
when the card was first spoiled i actually misread it as "tsujigiri" which translates to crossroads killing. basically if you were a samurai and got a new sword you would go test it out on anyone unfortunate enough to be walking by. this isnt a card yet but im hoping it eventually will be
shinobi - ninja
bonsai tree - the bonsai tree is actually a very good symbol for jinteki. bonsai trees are created from pieces or samples large trees and cultivating them to be aesthetically pleasing to the practitioner much like jinteki does with its clones so there is a double meaning on caprice's art as she is a clone pruning a bonsai.