I have heard 'rumors' that it is being modified with a new music reading system (replacing the punch tape system) that can bring the life back into the organ itself. Rumor, is the key word here. I also cannot remember where I read about this.
I just looked through everything pertaining to the Carousel this season and so far nothing says anything about the organ. However, the Carousel still has a few more years for it's restoration, and the organ can possibly be worked on in the future.
Kings Dominion shared to their Instagram story that the Carousel is getting some detailed paintwork for its 100th anniversary this year!
(Unfortunately, I can't embed Instagram stories to the forum, so I recommend checking out the park's Instagram story before the Carousel update goes away!)
Can we just take a moment to appreciate how magnificent of a job KD hasdone on keeping up with this not just as an operating ride but as a work of art to. If my research is correct this is one of the 25 oldest continually operating Carousels in the country.