Heroclix is a tabletop miniatures game made by WizKids/NECA similiar to Warhammer or Warhammer 40K, but on a much smaller scale that deals with Marvel and DC super-heroes. Instead of vast armies, you only play with small teams of maybe 5-10 figures, in most cases.
The first Tolkien set was released last Fall and was based on the LOTR movies. It's actually a really strong set as far as being competitive with the super-hero stuff that WK usually makes. The upcoming Hobbit set is confirmed, but we don't know what figures will be in the set. Like the LOTR set, it should include basic single figure blind packs and a "starter" set that contains a preset list of figures (last year's LOTR starter had Sauron, who is a bad-ass in the game). The LOTR set contained 21 figures and 3 Chase figures and was prize-supported for tournament play with 2 Limited Edition figures and the One Ring object token. It's anticipated that the Hobbit set will be comparable and should be out by around Dec - WK is always delaying product, so take whatever the going release date is and back it up a month.