Rumours have it that apparently, next season a drama with Kimura Takuya and Karina in the starring roles is going to air on Fuji TV. Just a week ago, Rich Man, Poor Woman has started on that time slot - Monday 9pm.
It is not yet offically announced by either of their companies, but according to several websites, it'll be a love drama that'll revolve around their difference in age.
Click the sources for the Japanese original news :)
(Maybe someone's able to fully transalte it, my Japanese reading skills were barely enough to grasp the the main points ~~~)
sources: mantan.web, exite.co.jp, nose_karina