Is there a release date for ENS 10.5.3?
I am also interested
The word at Mpower is RTW the first week of November. See this thread for further details on the cause for the delay -
According to McAfee Corporate KB - Windows 10 compatibility with McAfee products KB85784
it is now RTS (ie released to support).
So you may be able to get a copy before RTW by contacting McAfee Tech Support.