Oblivion had two, but the Shivering Isles was massive, Point Lookout has been quoted as an indicator to the amount of content. If so, four of those plus the main game would add up to quite the package. Of course, someone will always want more.
Anyway, BGS have given us small amounts of extra gameplay features along with the fix patches, for free; almost unheard of in these days of code-locked on disc content. Imo, this bodes well for both the content and quality of the paid for add ons.
indeed.
Do we have any news on how much extra land mass will be avaliable in Dawnguard?
We'll need new land to stretch our legs for the expansion of course, how much do you think there will be?
I'd say they'd have to put in at least as much as there is in Falkreath or Markarth hold to keep things from being too tight.