Very interesting topic. Especially when flying multiple sectors a day, a standardised briefing tends to become routine and who can really say they're still listening 100% after the second one.
I have heard that some airlines have moved towards just briefing the specials for a departure or approach, to only brief things that need attention or that are different.
Where I fly we each check our FMS set up independantly. Once ready for briefing we keep it short such as "route acc. to FMS, which is checked" . Dont have to read all the points and altutude/speed restrictions. Thats where people will start to tune out.