No, only kempo; we don't have to do those things, there just a matter of personal choice. We also don't do nimr's matarial, they just seem simular. We trace back threw Raman Lono Ancho (another Mitose student while on Hawaii) and to Dick Stone (Durbin's first instr.), Karamijutsu or any of the other auxilary arts, are not required for any rank in the main of Kempo; There are just alot of fun to do (in my opinion anyway, hence my Aikijujutsu training).
But to not digress to far from the subject, is it relatively required for most Aikido students to have some katana training or is this a misconseption? Also in the schools that have it, what does the training consist of (i.e. Iaido, Kenjutsu, etc. type)?