panzerghost

I know information is scarce but I was wondering how long the game will take to beat. Will it be a short 10-20 hours worth of gameplay or a full blown epic like fallout or KotOR 2 spanning 50+ hours. In addendum how long has the game been in development. I know with the delays obsidian finally has a chance to create a non rushed game as I'm sure THQ was pressuring for a quick release to avoid bankruptcy.