There are scenes in the trailer that show Arwen back in Rivendell walking up to the shards of Narsil... So I think they will have that in TTT.
ItsOurTimeNow, you may want to read our TTT spoilers thread, where we post news like that when we get it...
Lord of the Rings: The Two Towers (Movie Spy Reports and Spoilers thread)
Let me know if you want on the ping list for that! I hate to assume people want to know all the spoilers ahead of time!