What I don't understand is how this is news. They said they were going to do yearly releases a while ago.
The next few years should be interesting. I think Episode VII has a decent chance of being good. The fact that Lawrence Kasdan is writing one of the non-episode scripts and consulting for the big features is a good sign too. So I think the first few films will be of a certain quality.
If they can maintain that quality over the years is an entirely different question. Should be interesting if they get to the point of adapting the books and comics as George suggested when the announcement was made.