According to info published in the Amazon France website. The Ubisoft's Splinter Cell and Prince of Persia PS3 HD release is expected this November.
This edition is similar as the Sony launched with their games God of War, i.e adapted to high definition.
The rumor started when the website TheSixthAxis found the pack of Splinter Cell and later discovered also that of Prince of Persia. Currently there are no official confirmation from Ubisoft.
However, in one of the comments of the entry of such site, a user says that the package exists and he has been able to verify through a catalog access of pre sales.