Do you think Rayquaza stays with Roy in the next arc?

As we can see from the preview, 5 Pokeballs that were kept by Liko fell in to the abyss so is it safe to assume that the last Pokeball that was kept by Roy remained safe with him? Rayquaza wasn't shown in the promo art for the next arc but it could simply existed inside the bag and not being shown.

So far, Rayquaza hasn't completely accepted Roy yet and Lucius hasn't officially bestowed Rayquaza on to Roy so I think it makes sense for Rayquaza to be carried forward to the next arc so that it has more time to bond with Roy to justify him owning it in the future. It was Roy's dream, after all, to get Rayquaza and ride it back home to his island so I think this is a non-negotiable aspiration and it will be achieved one way or another.

Now some people might complain that it'll make Roy become overpowered having a Rayquaza on top of a Mega Lucario but it's likely that it'll take a very long time until Rayquaza is willing to obey his command so it most likely won't do the battle for him in the next arc if it exist there. Thoughts?