The Splinter Cell bundle is November 26th bound, while Prince of Persia's lot get a March 11th 2011 date. Sources say Ubi after their own "collections sku".
Both the PS3 'Collections' are RRP'ed at £29.99. The first 3 Splinter Cell games are Splinter Cell, Splinter Cell: Pandora Tomorrow and Splinter Cell: Chaos Theory. While the Prince of Persia Trilogy likely refers to the PS2 games released between '03 and '05.
Publisher Ubisoft "may be launching" their very own "collections skus" this year says a source, in the same vein as Sony's God of War Collection. No comment from Ubi.