I doubt they will and from their point of view there probably isn't any need to.

This isn't a 1st person shooter, so ~100-150ms of latency is perfectly acceptable. I'm in Europe (UK) and although it's initially frustrating with the AoE hitting you when you think they shouldn't have, you soon get to learn exactly how much time you have to move to avoid it. Since working that out I don't think I've been hit by any AoEs that I didn't expect to get hit by.

All the FFXI servers were (and still are?) based in Japan and I know from playing that for over 6 years that I didn't have any lag based problems. I have no idea what my latency to those servers was, but I bet it was a lot higher than what I'm getting to the Quebec servers now