the ticket is open from nov-2015..
but as described in the blog update (ago-2016)
"The SwitchYard team has finished up work on SwitchYard 2.1.0.Final. This release features WildFly 10 support, improvements in the SOAP and REST components, HTTP reference improvements, and support for enabling endpoint and data format definition."
I think if you need BPEL right now, your options probably are :
use SwitchYard 2.1.0.Final on EAP
use SwitchYard 2.1.0.Final on Karaf
use SwitchYard 2.0.0.Final on WildFly 8
because obviously there are issues with RiftSaw currently on WildFly 10. One other note - we're supporting WildFly 10.0.0.Final, we haven't done any testing on 10.1.0.Final.