It's only since 4&5 that VrayNext supports CoronaMtl (and not sure which lights) and Corona VrayMtl. So it should theoretically work if you keep whole scene in Corona, maybe except the materials with GeoPattern (convert to VrayMTL), keep lights in CoronaLight, if doesn't work, convert those to Vray, results should always nearly match.
I need to test this but I don't have VrayNext...just 3.6.