I recall some local elders being asked to attend when a reading of a will was stipulated. A few large estates left WTC sizeable amounts, but no one from the Branch was invited. The deceased only knew local elders who maintained a relationship with them through their final years.
I recall one state left to the congregation. Soon, the Branch took that in the great money grab a few years ago.
I have specifically stipulated that none of my estate should go to WTC or any JWs who might pass money onto WTC. They would have to sign a statement vowing not to leave WTC anything also so that no comingled money could end up in WTC;s account.