Matt 25:31 Jesus said when the son of man, kingly throne 1914. The CO said we have NEW UNDERSTANDING or new light. Previously we had thought the throne talked about in matt 25:31, Jesus had already took that throne in 1914. The new idea is that he hasn't taken that throne yet. This is kind of odd to me because how many thrones could Jesus have? He said that Jesus has two thrones one he took in 1914 and one he will take in the future. I presume he will take his second throne sometime around armageddon.
This is no new light. If the CO said that "previously we had thought the throne talked about in matt 25:31, Jesus had already took that throne in 1914", then he didn't read the Oct 15 1995 Watchtower (page 22 par. 25):
This means, then, that Jesus’ ‘sitting down on his glorious throne’ for judgment, mentioned at Matthew 25:31, applies to the future point when this powerful King will sit down to pronounce and execute judgment on the nations.