Bethesda is releasing Broken Steel on May 5th for pretty much the same amount. It was said that this was going to be the final DLC for the game. Now here we have the previous expansions being released as a double pack, so Bethesda may release 4 packs of expansions and sell them in packs of 2 for $20.
After playing alot of Bethesda's games this seems like a normal thing for them. They put out one expansion after another then bundle them up and resell them again. Wonderful marketing. Just look at what they did with Oblivion.
I will update this as i find out more info.
Written by Myhticgriffon