1 level demo: end of the year.
it should contain:
1. a quest with some subquests. you travel to a small village, encounter a plague-like desease, start to collect intgredients for a cure and finally fight the big bad mage behind it.
2. levelups for the actor, the enemies, and all items. yes, the items can get xp as well

. kill a big one, steal his powered up weapon, and you get all the advantages of the xp the big guy gathered.
3. more intelligent enemies than in ... lots of other games, especially doom. they try not to be hit instead of ignoring projectiles.
final game: 1 day after duke nukem forever is released