Thanks for the welcome guys!
Oh I really hope Brett's screen time doesn't suffer. I love her too much. The whole Roman-hookup to me was so random. I don't see it lasting though. Derek said during a Periscope Q&A that crossover romances haven't really proven to be fair to the shows.
I'm biased though, because I've wanted her with Severide pretty much since she's shown up. There is so much potential there.