It has been announced that SMAP x SMAP will be adding a new corner to the show that will involve the Juniors. The corner will be called Ganbare Johnny's! and start on October 31st. SMAP will be divided into two teams, Kimura & Kusanagi and Inagaki & Katori and will team up with Juniors and according to the announcement new units to compete in games and challenges against each other. It mentions that CD debuts are on the line but gives no further information about that.
SMAP x SMAP OHP. (Japanese)
This is really a smart move when it comes to promoting Juniors that the agency is thinking of debut. SMAP x SMAP is a highly rated program so it would be easy to get the general Japanese public to learn about these potential members of a new group. I am curious to what exactly "new unit" means. It could mean new Junior units but on the other hand it could be talking about the newly debut units of Kis-My-Ft2 and Sexy Zone (the later still having yet to debut technically but still close enough). I think it would be wise to have at SZ a part of this so people can get to know them better as they're going to need all the help they can get right now with promotion as so many of them are really fresh Juniors. But I guess it's something that needs to be clarified when the first segment airs and should be.
For the CD debut line I wouldn't get too excited. It says so very little about it and it could just be simply for a one-shot debut, which could lead to something more or nothing as it has in the past for Juniors. I think it's probably better to wait until the first segment airs at it should clear it all up.
I'm really curious to which Juniors are going to be a part of this. For any of them this is a big chance for them to start getting known and on their way to a potential career debut if they get popular enough. I'm not sure is SMAP fans will be happy to see Juniors on the program but it's not like they're replacing SMAP with them and I personally love see interaction between the generations within Johnny's and I can't imagine anyone better to help the next generation than a group that has defined the agency itself.