Echohawk
Shirokinukatsukami fan
You are missing the initial 2012-05-24 release and the 2012-08-17 and 2013-04-01 updates from this otherwise complete list.I have files dated 8/13, 10/8, 10/29, 11/13,and 12/17 in 2012, and 1/28, 3/20, 3/21, and 4/11 in 2013. The major updates were 8/13, 10/29, 12/17, 1/28, and 3/20. Per the earlier moderator note, I am not offering to e-mail them to anybody. But anyone who signed up for the playtest from the beginning in theory has all of the publicly released iterations of the playtest material.
There's a breakdown of the contents of each of the packets in the D&D Next Collector's Guide on the ENWorld wiki.