I think that Darren will receive an Emmy nomination this year!
I just saw on the GLEE IMDB board that Darren was submitted for consideration for a Primetime Emmy Award for Outstanding Guest Actor in a Comedy Series. This is the category that Neil Patrick Harris won last year for his role as Bryan Ryan in the "Dream" episode of Glee.
I think the show submits one episode for each potential nominee to be considered for a nomination. If they submitted "Never Been Kissed" when the character of Blaine was first introduced, I'm pretty sure he will receive a nomination!