Since we haven't heard anything, I assume Adam LaRoche has hit FA. At this point I don't think the Nats retain him. There are other clubs with a stronger need at 1B then the Nats so I don't see the Nats breaking another team's offer.
That being said, that means Morse probably won't be traded and will play 1B for the team next season, which will keep his defensive woes from ruining his offensive value. Unless Moore plays LF everyday, do you expect to see a trade or FA pickup for either a CF or LF?