Original Killzone heading to PS3?

An ESRB listing for the Killzone series, spotted by Gamepur, suggests that the original Killzone is heading to PS3. The game initially released on PS2.

The site lists both PlayStation 2 and PlayStation 3 as platforms for the game. Does this mean the game will be seeing a full HD re-release on disc or PSN? Perhaps it will be part of the PS2 Classics range?

Released back in 2004 the original Killzone was considered to be something of a letdown. It wasn’t until its sequel arrived in 2009 that the series gathered critical praise.