Now, thanks to a Microsoft site which went live bit early, Windows TH name is revealed. It is easy to note TH as the acronym for Threshold.
The site also reveals tech preview for enterprise customers and talks about the benefits of upgrading to Windows TH,
Defend against modern security threats
Elevate employee productivity
Embrace the mobile and cloud era
Enable upgrade without upheaval
The site can’t be accessed now and may have been taken down. It will be more interesting now to see what happens on September 30.