I had a friend who seemed to get really into the first .hack
but petered out pretty quickly into the sequel. I think it was just a matter of too much too quickly. People today question the wisdom of annualized Call of Duty
and Assassin's Creed
games, but Namco published four full-priced .hack
RPGs in the span of eleven months.
Speaking as a casual observer, if they were to resurrect the .hack
franchise, I'd recommend planning the sequels at least eighteen months apart. Developers need time to generate new art and music assets, smarter game play mechanics, and to respond to whatever criticisms people had about the previous entry.