I think Paton is a very decent chance.
I expect Lloyd is on the wing as he finished last year, Mitchell in his spot in the GWS game.
That leaves two spots for Paton, Wicks and Cunningham. Which will raise the question of what Cox prioritises in those defenders. All 3 have great speed and speed and discipline are basically Cunningham's selling points, he also absolutely had kompromat on Horse. Paton is the only one of the 3 that can kick and that's a massive edge. Wicks has the most size and aerial skills and given that the group is undersized already and that both Florent and Roberts also lack size, I think that's actually going to be a big advantage for him.
I'd personally be picking Paton first as the kicking is such an asset, having only Melican as a genuine non-user in defense would be a weapon itself. I'd like to see Wicks given the chance next, we know what Cunningham is, let Wicks prove if he can be more and if he can't, then go back to the limited lock down option.
Hard to read Cox though and I can make a case that none of the 3 play, 1 of the 3 or even all 3 play, albeit I think all 3 is by far the least likely to happen.
I must preface all this with the fact that I could never understand why Saints didn't play Paton either so maybe I just rate him irrationally high