^ I think that you are correct. If I use 10586.104 iso, it would be difficult to uninstall the superseded February 2016 Cumulative update from the iso, since this update is "fused" into the install.wim.
these are? 10586.0.151029-1700.th2 release / Version 1511 http://fg.ds.b1.download.windowsupdate.com/c/updt/2015/11/10586.0.151029-1700.th2_release_clientcore_ret_x64fre_pt-pt_a57d0d88620262ae8ebde37bef8c794d3b723c64.esd
No Windows updates on this Patch Tuesday, only MS Office updates... I believe this fact may be an possible release of Anniversary Update will be approaching.
Patch Tuesday is next week, this week is about releasing some Office updates via Windowsupdate only. The likely reason for this is to lighten the load on Microsoft's servers come actual Patch Tuesday. General release of the Office updates occurs on actual patch Tuesday, which is when the WHDownloader lists will be updated . Windows 10 Anniversary update is coming out soon for Windows 10 likely towards the end of July, but you'll still see Windows updates before then for issues they see as necessary to fix before the updated version release.