Not much.
He is directing the Watchtower Society to print magazines that contain errors.
The goats he separated from the sheep have had to be put back in with the sheep because of policy changes.
Stray sheep have been ostracized and turned into lamb stew.
The war to end all wars (WWI) has been followed by WWII, Korea, Viet Nam, and the Cold one. (No need to mention the war on terror.)
There have been earthquakes, famine, disease and a lot of marrying and eating at fine restaurants.
1925 came and went without any Ancient Worthies moving in to the residence at Beth Sarim.
The world got so dangerous in 1975 nobody noticed it.
The generation that saw all the signs and wonders had been dropping dead like flies. So, the GB changed the countdown clock they had been advertising and pointing to since 1916. An overlapping patch was sewn on another failed false prediction.
Brothers and Sisters who use to serve Jehovah and worship Jesus now know it is the Governing Body who calls the shots and Jesus is only "a" god with a widdle "g". At least Jesus got some kudos until 1954. He got demoted then, alas!
The preaching work has been so successful that not one person in a hundred can give a coherent answer to what Jehovah's Witnesses actually believe.
Hundreds of books printed by the Watchtower Society have begun with the stale Adam and Eve story and thousands of JW's have nodded off at meetings hearing it all for the umpteenth time. Sigh.
The end has been "near" but, the answer "near to what?" needs shaping up a bit.
Jesus use to be clean shaven, but, now has a beard like Christendom said he did. Is that advancement for the Society?
The Superior Authorities use to be Jesus and Jehovah from 1929-1962, but, now they are the earthly governments just like Christendom said they were.
Did Jesus fall asleep when he was supposed to send that memo to the "mouthpiece" in Brooklyn?
All in all, as CEO of the hottest most wonderful government ever known to mankind, (albeit invisible) Jesus hasn't had a hit since WWI and is turning into the biggest disappointment since Milli Vanilli.
Tsk tsk tsk.
When the clock chimes 100 years reigning over mankind---WHAT THE HELL DIFFERENCE will it have made?