Odd comment heard in regards to leadership of SGI if P. Ikeda's dies.

At a discussion group a question was risen as to "who would lead SGI if Pres. Ikeda died." A District Leader advised that everything that could be said has been said in regards to Nichiren's work by Ikeda and he even advised that there was no other leader after him. Has anyone got any submissions or links to this? If true wouldn't this type of statement be made in a cult or what?