Lexx said:They never anounced 8 DLC packs. It was always only 4-- and this we only know due to the registered names, if I remember correct.
Pretty much. Feargus also confirmed it once to GameBanshee though I don't recall if the interview was published.
Fallout 3 initially planned for less DLC too IIRC, the number was upped due to success. I doubt the same thing would happen to New Vegas at this rate, so for now, 4 is the plan.