ok, guys and gals. my updater was locking up on a couple files today, and lo and behold, I discovered the first files for expansion 5 (and for the new dungeon that's supposed to be coming out in TWO MONTHS(though originally slated for August). guess they got a tad trigger happy on loading up the files).
Any way, if you go to the Paks folder in your EQ2 directory (after the update), you will notice two new files in there.
first file: exp05_dun_veksar.vpk
second file: exp05_dun_veksar_SG.vpk
now, I know those are for the new dungeon in september because if you look at the Living Legacy schedule, they say for September: "Veksar Group Zone - Game Update #48" (and the next line says GU 49, but that's a whole 'nother deal altogether, and nothing to do with this post). and the prefix for those files "exp05" clearly indicates that they are also for Expansion Pack 5.
So there you have it. enjoy the "surprise".