She's only in 11 episodes? Thats weird. I figured since she was the new commander, and has a prominent place on the DVD case, that she'd be a big part of the main cast. Still, if episode one was any indication, I'm not complaining about the fact she's only in 11 episodes.
My opinion is that Lochley's character was fleshed out in those episodes than Ivanova's was in her first season.
Season 5 has to build up momentum after so much being settled in Season 4. But for me a real bonus of the season is getting some of the eps that had been set aside from the intensity of the fourth season.