Another perspective on christianity's Long Now problem

Scholars alive 10,000 years from now who study ancient religions would know a lot more about a successful religion - call it Religion X - which starts 8,000 years from now than they would know about christianity, mainly because they would have fresher and probably more abundant historical information about Religion X's origins and development.

In other words, from their vantage point Religion X originated 2,000 years ago, but christianity originated in the much deeper and more obscure past of 12,000 years ago. Does any christian believe that christianity can survive for another 10,000 years, or even another 1,000 years, given its unfulfilled prophecies about the "end times"?