Although the title of the next Hitman game has not been officially announced, Square Enix Europe have trademarked the title ‘Hitman: Absolution’. So, although there are other possible explanations for the trademark, it isn’t too far fetched that this may be the name of the next major installment of the series. Though, the idea of this being the title of a Hitman spin-off does raise some odd thoughts about a Hitman Tennis game or Codename 47 Kart racing etc…
Thanks to Siliconera for the info