S2Games, indie developer for Savage 1 and 2 (both games that S2Games admits fell short of their expectations), has released some sneak peaks for their next title, Heroes of Newerth, on their facebook page (currently the main source of official information about their next title).
The game is currently in closed beta with regular beta invites being handed out to the current testers, so they can invite their friends to help 'test'.
You can see concept art and some videos on their facebook page. Below is another video released for the new mobagamers.com website which compares LoL, DoTA, Demigod and HoN. You can get more information about HoN there.
The reason for the lack of information about HoN is because S2Games doesn't want to repeat any previous mistakes that they made with Savage 2 which was delayed for over 2 years. If you want to keep up to date with HoN then keep an eye on the following links...
Official Site Official Facebook Page Official Forums (currently private)