Warner Bros have released minimum and recommended specifications for Hitman 2 and teased bits and pieces of the story, albeit it's just that - bits and pieces. Nevertheless, it looks like Hitman 2 won't be very demanding on your hardware.
According to Hitman 2's Steam page, minimum requirements are Intel CPU Core i5-2500K 3.3GHz or on the AMD side of things a Phenom II X4 940. As for the graphics, Hitman 2 requires Geforce GTX 660 or Radeon HD 7870.
Recommended requirements list Core i7 3770 3.4GHz on the Intel side or FX-8350 at 4GHz for the AMD camp. Recommended graphics are Geforce GTX 770 or AMD Radeon R9 290.
Freshly announced Hitman 2 will take up around 60GB of hard drive space and comes in two flavours - Gold and Silver Edition. We're not going to advertise it here, but we must admit that the executive pack offered in these special editions is pretty sweet.
The game's Steam page says that Agent 47 is hunting for the "elusive Shadow Client", whose militia you'll be dismantling in the process. "But when 47 learns his target's true identity and the truth about his past, it changes everything."
If you preorder the game, you get early access to Hitman: Sniper Assassin, which seems to be getting pretty good scores already. Most reviewers welcomed Hitman's first sniping game since the Hitman: Sniper Challenge from 2012, albeit conceding that the game is a bit on the short side.
Nevertheless, Hitman: Sniper Assassin should do well to put you in the mood for some piano-wiring of the poor sods that happen to stand between you and the "elusive" Shadow Client. In case you didn't catch it, the game can be played in co-op multiplayer as well.
Interestingly enough, the first reactions to Hitman 2 weren't those of joy, but of preemptive enthusiasm management - will the game be episodic? Now, we realise that there are some who seem to prefer episodic content, but we'd suggest that both of them just shut up and get off Warner Bros' payroll already.