Juniper Networks JNPR 30,15 +0,57 +1,93% has announced in the last couple of days End-of Life for the WX100 devices. This effectively kills off the WX stack architecture as a side-effect.
The WX-100 was typically never found in standalone deployments, but formed the hub of the WX stack architecture, now capacity improvements will need to be engineered for individual devices using configuration and design methods, rather than a pool of devices, maybe using individual WCCP pools and redirection from a router or switch, rather than a dedicated device.