Well, going by the Japanese phonetics, I imagine its something like:
Hydaelyn- HIGH-de-lin (I'll be honest, the syllabic stress here is a guess; since Japanese needs two syllables to make the English long "I" sound, that means the first two letters make up 2/5 of the word.)
Hyuran- HYOO-ran (rhymes with human, though it will always be Hume to me, too. XD)
Roegadyn- ROO-gah-din (This seems odd, but in Japanese it is spelled with the RU kana. I think that it might be an approximation of the German Ö (which is the same as OE).
Miqo'te- mee-KOH-tay (or maybe MEE-koh-tay)
[Guild]leve- LEEV (Just like "leave." In fact, 'leve' is just an old fashioned spelling of 'leave,' as in, "You have my leave to depart." The idea is that these are guild permissory notes that initiate quests, I think.)
While we're on the subject, I noticed something else. Two of the cities are pretty straight forward, Limsa-Lominsa and Gridania, but Ul'dah (which you would assume to be ul-DAH or UL-dah) is actually romanized as U-RU-DA-HA. The last syllable doesn't fit if the last H is more or less silent in English. However, this might be meant to be a breathy, throaty H like those found in Hebrew. This makes me think it will end up being something like "ul-DAH-ha," with the last "ha" barely pronounced.