Is it a bad sign that they're only taking two years apeice for the new films, or was that the same for the other six and they just took off a year in between production of films?
IIRC, pre production on AOTC was underway as TPM was in theaters. The same for ROTS as AOTC was released.
Also, they seem to be working on scripts for the sequels well in advance. That makes planning the films a lot easier.
Yeah, Rian Johnson was announced as director and writer for Episode VIII over a year ago.