Regarding transfering saved data from the original, here's what the staff member at the official Atlus forum had to say:
8. Can I continue my game of Persona 3 in Persona 3 FES?
Not really. The Journey section of P3 FES is meant to be played from the start so that you can experience all the new content. If you're in the middle of October in Persona 3, you cannot load that save into Persona 3 FES and pick up in the middle of October in The Journey; you must start a new game at level 1. However, you will be able to load some things from your Persona 3 save into FES. These are:
-Your Academics, Charm, and Courage rankings
-Your discovered Fusion Spells list
-Any key items you possess that unlock Persona fusions
-Your Persona compendium (However, the Personas in your compendium will be reset to their base level, stats, and skills)
Quote from Alizarin on 03/03/08 at 23:48:19:Do not want. They pushed Baroque back for this.
There doesn't seem much logic to that. If anything, I would think an earlier release date for Baroque would have been more ideal (it wouldn't compete with one of their own titles). Atlus is notorious for pushing back their releases, I wouldn't be surprised if FES gets a delay at some point.