The announcement today though implies that Najar will only be training with the team through the end of this month, which would seem to conflict with the earlier reports that Najar would also be missing Honduras' appearance in the Copa Centroamericana in January. This may leave open the possibility of Najar extending his stay with Anderlecht into the new year.
But some additional information also came out today related to Najar's time with Anderlecht.
#DCU GM Dave Kasper confirms Najar loan deal was part of discussion with Anderlecht, but "never materialized." It could resurface.— Craig Stouffer (@CraigStouffer) December 14, 2012
It sounds to me like United would have been open to loaning Najar if the terms were right, meaning that there is still the possibility that he could play some real matches overseas in the near future.