“Thanks to everyone who’s been buying/playing Dishonored. Sales folks are all smiles today after another big weekend. Hooray for new IP!” – Twitter of Pete Hines
That’s really great news for everyone, but don’t get too excited– someone (I don’t remember who, actually) from Bethesda said last week that whether Dishonored will turn into a franchise or not isn’t solely dependent on sales, and they want to take whether it needs a sequel artistically/story-wise into account as well.