There is no indication on the park website that it has been opened.
The Cassidy arch was not affected and would be a good alternate.
I also enjoy the Capitol Gorge hike though it is easy. Cohab Canyon or Fremont River trail might be comparable difficulty with some nice capitol reef views and habitat.
I was just down in Capitol Reef a week ago and the trail is still closed due to a rock slide. As mentioned Cassidy Arch or if you want to drive a lot longer and have a 4WD vehicle and are a skilled hiker you could try Brimhall Natural Bridge. I also found a small bridge in Capitol Gorge above the "Tanks". I would definitely recommend Cohab Canyon too.
Thanks for the update, Shake801! Getting news from the Capitol Reef rangers can sometimes be a struggle~
That must have been some rockslide!