I'll be interested to see how Eddie's character fits into the team and what his role will be on the show (friend, nemesis - with Miami, you never know

).
I'm also curious to see what happens with the coroner situation. It would be interesting to see Megalyn Echikunwoke* come back after the stolen drug situation, but I'm not convinced that we'll see her (unless they make her a villain out to get Ryan or something - that wouldn't surprise me at all

). Without Khandi coming back (and while that would have been cool, I wasn't counting on that one because of the
Treme role), it looks like we're going to need a new coroner.
I'm kind of surprised that they're adding a new guy without getting rid of anyone, and to add a police officer when the show needs a coroner is even more surprising. Maybe they'll bring in temporary coroners, or maybe they'll get one person to take Dr Price's place. Or maybe they'll bring that one guy back from the end of S6/beginning of S7 that was in on Horatio's fake death stunt...I guess we'll see! They can do without coroner scenes for some episodes (and have before), but I'm sure they'll still have a need for a coroner sometimes.
* Sorry, I had to write out her whole name - I learned how to spell it when she joined the show, and I'm afraid I won't have many more chances to type it out if she's gone for good. So I gotta type it while I can.