Gamasutra indicates that Microsoft is considering to slow or stop the production: The market is about to saturate and it would be pointless for Microsoft to continue to manufacture consoles; Stocks would be sufficient to take effect until the fourth quarter of this year.
Of course, the situation could change if Microsoft announces at the E3 some new games that will boost the sales of the Xbox.
Microsoft has released its console in 13 countries so far, but it will be available in more markets in the coming months, which will allow them to sell the stocks and re-boot the production.