Well, going through the Japanese Wikipedia SASUKE page brings up this little tidbit at the end of the ratings chart:
第19回大会 2007年 （18：55 - 20：54 9月19日放送予定。）
19th Competition 2007 (18:55 - 20:54 September 19th Broadcast airdate)
Not only that, but the next Kunoichi date has been announced and the page is already up at TBS here.
Kunoichi will be shown on September 5th from 6:55 PM. Contestants this year are Ayako Miyake (who has completed the course three times), Yuko Mizuno (sort of the Kunoichi Mr. SASUKE except she has a real job -- kind of), Asami Abe and many others.
Don't know if I'm going to do a live blog (depends on my schedule) but I will be posting results and pictures as soon as I can!
Also, G4, which airs SASUKE in the states as Ninja Warrior has been holding a contest to decide which one of their viewers will be their "American Ninja." The board regulars are not exactly kind to the contestants.