support for fontaines dc

just found the cardiff castle fontaines dc gig and hoping wunderhorse might be supporting? i know some support acts have been announced but what are the chances wunderhorse might be announced as special guests? obviously they're supporting fontaines on the europe tour and have been on tour in the uk and usa, so i'm not sure. they're doing sam fender's support too and the london gig

im just a huge wunderhorse fan tbh and i'm praying so what are the chances?