Re: More Star Wars films announced
Grievous in ROTS was barely more developed than Maul had been two films earlier. It took Expanded Universe materials and the recent Clone Wars series to flesh him out as a Kaleesh warlord who had been cybernetically reconstructed (almost Vader style) after a shuttle crash.
The movie itself makes him out to be fairly one-dimensional.
Human instinct is pretty strong. You can't expect us to change overnight.
-Captain Jonathan Archer, 2151