i sincerely doubt we will see Glover throwing up armbars and triangles. Arona was a good ADCC competitor and he is pure top game, more then likely Glover is as well.
He's got a punches chance against Jones and that's about it. though he probably won't be getting ragdolled early as his wrestling is pretty good so there's more of a chance for it to happen.
I agree with the above possibilities, but to be honest, who would imagine Vitor would try to armbar Jones rather than blitz him with strikes?