http://eqiiforums.station.sony.com/e...d=10188&page=3
This thread here seems to have solved a lot of the mystery.
While most still argue at one point these symbols represented Gods, they are undeniably the symbols that represent the Cities/Races of Norrath. As illustrated from the Firepots in TD, among other places.
The symbol thought to be Veeshan, is clearly also the symbol of Neriak. Sounds like it's time to reclaim the old cities of Norrath. WTB Gods.