I don't think there will ever be an "officail" remake of X-COM. Oh how I hope I am wrong. The first two X-COM's were really good, but then came the third one, "X-COM Apocalypse." Then came the third person shoot game, i forget what it was called, but oh god was it bad.
There are a few open source projects that are trying to "remake" X-COM without getting introuble with the software companies. Here is one of them. Just found it, so I don't know that much about it.
http://www.projectxenocide.com/
Is Pirates only for X-Box, or will there be a PC version as well?
Pirates is coming out next month for PC only, but next year (I think in the first quarter) it's coming out for X-Box also.