That is what was meant by "quarterly releases" as stated during Citizencon and the recent holiday SQ42 livestream.
They plan on releasing whatever is ready at the time of quarterly release instead of waiting for stuff to be done before giving it to us (ex: waiting about a year for 3.0)
Now disney can take the movies into virtually almost any direction, they arnt tied up with the same old storyline. Should make for a decently diverse and interesting next few movies.