Bump....
There was a wingflex issue reported on the 737 back in April, still not a word from CS.
CS has not given a single update I can find on the 737 since the very informative "yes" in this thread back in May.

Since May, the have however released a 767 freighter for P3D with no animated cargo door, a CF engine with no sound, several 777s for MSFS, and just yesterday the 767-400 for MSFS.

Willing to bet my paycheck that if the question about development on the 737 is asked of CS again...and they reply...the answer will be "yes".
Maybe you should frame the question with a bit more specificity....like "Since you won't say when development will continue, can you at least tell us what other models you're going to port to MSFS first, before you get back to finishing the 737?  This way, we can estimate how long it will be."

Words to remember....they never "promised" a fully developed 737...and should they make the same development decisions they made with the 767, you 737 owners may have all you're gonna get for a 737...until they port THIS exterior model to MSFS.  Maybe they'll give you existing P3d 737 owners a discount on the MSFS version for buying the incomplete $60 737 for P3D. ;D