Probably not: Microsoft hasn't announced when it will obsolete/retire/discontinue the Win2k exams, but they normally don't do that until "generation+1" exams are out (which means exams associated with the next release of Windows server after 2003). Most experts believe this next generation won't be out until 2006-2007, so it's likely the Win2k exams have at least three more years of life ahead of them. But all this is speculation.
But here's something that's not speculation: Microsoft's stated policy is to provide a year's notice of exam discontinuation. They haven't done that for Win2k exams nor have I heard any rumblings through my normal sources of gossip or inside info. Thus I can definitely say that as things currently stand, the Win2k exams will NOT be discontinued in one year.
This was first published in October 2003