So, as for season 3:
It's clear that had season 3 been allowed to live, we would have seen that Roman got killed but the following would need to be kept as a secret till season 3.
a. We would have been left hanging over Jack Reese's death
b. We would have been left hanging over the other question marks over the 5 mob bosses.
c. We would see a more detailed look at how Dunn (the boss that was mysteriously killed) was killed and why.
d. We would learn more about the Bank of LA robbery and how it was pulled off.
e. Possibly Rayborn would need to be confronted again since he got away and now has leverage on the new captain Seever. :p
f. We would see more of Bodner and possibly more about how the FBI was corrupted by the Mob.
g. We'd seen more of Rachel Seybolt again since Roman is dead. My guess is that this would be necessary unless Ted and Olivia were brought back to live above the garage??
h. We STILL never learned who set jack up to take the fall for the Seybolt murders. (WHICH WAS THE POINT OF ALL THIS OMG) The explaination that Rayborn gives (that is was all a big mistake) doesn't make sense. It's a nice and tidy clean up of the series, but it doesn't fit with either season 1 or season 2. Someone from INSIDE the police department had set Crews up to take the fall for the Seybolt murders. Who and why? That is was all a big mistake doesn't fit with what we were being led to belive all season long.
I doubt that the season will be brought back, but It was fun while it lasted.
Anyway these are some of my thoughts and comments.
:)