Ubisoft has apparently heard from it's fans and might be changing how often an Assassin's Creed game is released.
During a Q&A session, CEO Yves Guillemot was asked if Assassin's Creed will be a yearly franchise again, once it returns next year. Guillemot responded, "The goal is not automatically to come back on an annual cycle but to come on a regular basis. We saw that it was time now to give it lots of time so [the developers] could really work on the property and all the mechanics to make sure we could take it to another level. What we are seeing today is really promising. We will be able to come [out] on a regular basis. Now we can't say every year."
Later on in the Q&A, CFO Alain Martinez said that the series might return to a yearly release, but if it did, the games would only be released if they were completely ready. They would not be released just because they are holding themselves to a specific schedule.
My Two Cents
If that means more polished, well-made titles as opposed to whatever Unity was when it first released, sounds like a good plan Ubisoft is sticking to. Even if they do become yearly again, at least Ubisoft has seen that people are tired of buggy, broken releases.