Last year during the Q3 earnings call it was revealed that Lion would launch the next day. With the date being fixed for the 24th this year I think we should see ML out on the 25th.
References:
2012 Q3 earnings call: https://www.macrumors.com/2012/07/02/apple-to-announce-3q-2012-earnings-on-july-24/
Lion release date announcement: http://osxdaily.com/2011/07/19/mac-os-x-lion-release-date-july-20/
References:
2012 Q3 earnings call: https://www.macrumors.com/2012/07/02/apple-to-announce-3q-2012-earnings-on-july-24/
Lion release date announcement: http://osxdaily.com/2011/07/19/mac-os-x-lion-release-date-july-20/