If you don't want to know what's going to happen don't read any further.
Episode 1 "A New Day"
- We won't find out about Frost's death until the end of the episode. It will be a car accident.
- Jane is pregnant.
Episode 2 "Goodbye"
- As the title suggests, the service for Frost takes place in this episode.
- Jane delivers the eulogy.
- Maura meets a professor and begins to fall for him in Episode 5
- Tommy Rizzoli will be back for at least one episode.
- Susie Chang will be in quite a few episodes.
- Jane will possibly get a new partner by episode 8.
Source: The internet