When Hitman 2 was first announced a few days ago, it also announced a pre-order bonus, a Sniper Assassin mode which features, for the first time in a Hitman game, co-op.
Suffice to say, its a rather substantial pre-order bonus that could be a stepping stone for the series to grow bigger and better as a separate, but complementary, package to Hitman 2.
Source: N4G PC Hitman: Sniper Assassin – First Impressions | Gamer Matters