looks like WMS isn't renewing their agreement with FarSight. Bally and Williams titles will no longer be available for purchase after June 30, 2018
https://www.polygon.com/2018/5/8/17333300/pinball-arcade-bally-williams-license
so, PPS just holds the rights for reproducing things? and WMS is still the copyright holder for all of the b/w ip's?