Right now, signs point to no. No US East servers and no South America servers. The servers that were once housed in Montreal are now somewhere on the US west coast. Why they did this, we don't have any concrete evidence. Most have said that it's because the parent company of the server-keepers have worked with Square Enix before (NTT) and likely had a great deal going.

I was one of the lucky ones because my ping went from 95 (this is the around the ping that most of my east coast friends have) to 25. Yes, I'm US west coast.

We do not know (nor do I feel it is likely) that they will house more servers in the near future.