I don't think Kanjani will have it since they just released three singles in three months and all were theme songs (anime/movie and dramas). It'd be a bit too much ?
As for NEWS, I guess that if they have a drama theme this summer it'll be for Shige's.
i thought news is coming out with a single soon? it might be possible for them to sing the theme song if it wasn't a getsu drama, but in this case no chance
Ryo has been left by his girlfriend/wife/whatever, he still has the kid (which apparently is hers from a previous guy or something), Gakki takes care of her boss' kid and they both meet at the kindergarten where both kids go. or something along those lines.