Sorry for the delay in giving an update on the 4.4.3 upgrades but I had to wait unit Google announced KitKat 4.4.4 today (I am bound by a NDA). A significant security vulnerability was discovered by OpenSSL (https://www.openssl.org/news/secadv_20140605.txt
) and is fixed in KitKat 4.4.4. We had to wait until KitKat 4.4.4 became available. Consequently, all of our 4.4.3 upgrades that were in carrier labs worldwide (including the 2013 Droid's) had to be respun, tested and resubmitted again.
This was a significant unplanned effort that we had to undertake. We should be re-entering labs next week and hopefully getting TA (technical approval) in 3 to 5 weeks later depending on the carrier.