I have not heard anything about the show closing. Last week's grosses indicated they were playing to 90.2% capacity. Not exactly the figures you see for a show that is shuttering, unless it's "final weeks".
There are many shows that have, or have announced that they will be shuttering; 13, Hairspray, Grease, Boeing-Boeing, Gypsy, Young Frankenstein, Monty Python's Spamalot, White Christmas (seasonal) and Spring Awakening that I know of.
Every day I am checking on the latest in Broadway happenings through numerous sources. I've not heard anything about Ave. Q closing, although it certainly wouldn't break my heart. I really never cared for the show...