He'd have a real lousy chance of beating Jones.
All you really have to hang your hat on here is Jones getting caught in armbar by Vitor, who isn't known for his submissions (he's a black belt though, so he's at least competent.) But let's not forget how that fight ended, yes? It was Jones who submitted Belfort.
Don't think so, Weidman is a very dangerous and well rounded fighter even to Jones.