From my understanding, SAS Viya is a cloud based platform, not really an application in of itself. Therefore you would still be using SAS 9.x - for which there are certifications, and Python/Lua etc. for which there are external to SAS certifications. In terms of admin, I do not know how large that is, I would have thought the purpose would be to simplify that as much as possible, so there may not be need for certification there. Anyways, there is a Viya specific board where you might get more answers:
https://communities.sas.com/t5/SAS-Viya/ct-p/sas-viya