I don't think they broke up, just that Dave Brockie / Oderus Urungus kicked the bucket.
I remember really missing the cultural impact of GWAR in 2016.
Edit to add: they're currently on tour! There are no more members left from the original lineup, but the original Jizmak da Gusha, the current Balsac the Jaws of Death, and the current Beefcake the Mighty have held such considerable tenure that they establish a strong persistent core.
