Not at this time. According to
http://support.microsoft.com/lifecycle/?p1=3223, support of Windows XP continues for quite a while. And even when support ends, XP will still run. I've never had a need (or desire to wait) to contact MS support regarding Windows, and by the time they stop shipping security patches for it, all the hackers will have moved on to fresher targets anyway. And by then, perhaps CrossOver or something like it will support UR running on Linux.