the short answer: yes
the long answer: yes.
if you look at the kosen judo tapes you see alot of moves that you would think that a judoka wouldnt have. These tapes were made in the 70's by 5 or 6 judokas who were at least in their 60's, among them (in the tapes) was Kimura himself (tha guy that beat helio). its an interesting video, and sets straight the myth that the gracies vastly improved the techniques. Although i think that anyone can innovate, i think the gracies give themselves a bit too much credit in that respect.
the one thing that i forgot to add was the fact that count koma picked up some catch wrestling on his way to brazil, which probably influenced his personal style and also his teaching style. so there would be a little bit of catch too in bjj as compared to kosen....