katalam and danaria! it seems like the majority of suggestions thus far are either previously used server names, or affiliated with one of the factions. katalam and danaria both had bases for elyos and asmos, and they are related to each other and to aion. also, as someone mentioned previously, the names are hard to mispronounce/misspell, unlike sematariux (which i do think is a cool name) or some of the other suggestions
since iluma and norsvold though, don't ariel and azphel currently have faction affiliations (ariel's/azphel's sanctuary)?