I'm in an interesting spot. I just got my FO status yesterday and I have a trip booked for Friday. That trip was booked prior to getting FO status.
Side note: I know my chances of upgrade are next to nothing, but it doesn't hurt to try.
When I check the flight on delta.com it says "Upgrade Eligible". I called and spoke to a rep and she said that everything was fine and that I was on the upgrade request list and all is well.
Taking the advice from this forum, I hung up and called back, speaking to someone else. I got the exact same answer from the second person. "Jus' hang loose, blood. She gonna catch ya up on da' rebound on da' up(grade) side." (paraphrasing, of course)
Update: I just checked again and now it says "Upgrade Requested". Hmmmmmmmmmmmmmmmmm... seems the second call might have been a good idea!!!