A Capcom press release confirms that one million copies of Dragon's Dogma have shipped so far, which is enough of a success to earn the game a place as a "major franchise" for the publisher. While it's not explicitly stated, this new definition essentially seals the deal on a Dragon's Dogma sequel of some sort.
The press release notes that the game set week one sales records in Japan for new IP released in the past 10 years. The sales success of Dragon's Dogma also marks it as Capcom's 55th million-seller, which is no small accomplishment. While there may be no direct confirmation of a sequel, as mentioned above, the release does note that "Capcom plans to add more titles to the lineups of its core game franchises."
Dragon's Dogma isn't a perfect game, but it's certainly an entertaining one. How many other games allow you to crawl all over giant boss monsters and stab at their tender, exposed bits with your blade? Other than the very different Shadow of the Colossus. For those who missed Capcom's May 2012 release, be sure to check out our Dragon's Dogma review.