There are screen shots up too. Apparently too many machines no longer can run the older games so they're redoing it for the newer machines with added content. (see FAQ)Avernum: Escape From the Pit features:
* Epic fantasy adventure in an enormous underworld.
* Huge outdoors and eighty towns and dungeons.
* Three separate game-winning quests. Seek safety, escape or revenge. Do just one of them or all three!
* Unique races and settings make Avernum different from any adventure out there.
* Dozens of side quests and hundreds of magical artifacts.
* Rich game system with over 50 spells and battle disciplines and a multitude of beneficial character traits to choose from.
Extra Information:
Avernum: Escape From the Pit for Macintosh and Windows will be available at a considerable discount for anyone who has purchased Exile: Escape From the Pit or Avernum from us in any form (including on compilation CDs).
Macintosh Version Coming Q4, 2011.
Windows Version Coming Q1, 2012.
iPad Version Coming Q1, 2012.
They've set up a FAQ for questions that have come in so far.
Link to it: http://www.avernum.com/avernum/avernumFAQ.html