The XP and ability items will not be in the live release.Something like the xp charm that dropped in 2011 and had maybe 2-5 on a whole server isn't suddenly going to drop 30 of them. Rare items will still be rare like people still pay stupid amounts for rad Es armor and that boss has not stopped spawning.
Not 100% on whether they are in the beta build but Design inform me they will not be in release.