It shouldn't. Each time the DLC packs were released for Killzone 2, they were number 1 on the store's download list. The same exact were true for all of U2's map pack, so there's obviously a pretty huge demand for them. As is the case with Uncharted, they ditched Uncharted 2 the second they started working on U3 and GG ditched KZ2 the second they started working on KZ3. It's understandable, but you'd think they would have enough respect for their community to continue supporting their previous game while they're making the sequel.