If Chelsea were to start him, he wouldn't be on loan, nor would he be hinting he wants to leave. It depends on the new coach.
We can outbid Atletico, therefore staying there may not be an option. So it us really more whether we are attractive eniugh that he might pick us over being unsettled at Chelsea or holding out for a move to Atletico that might not materialize. I think we meet that threshhold, but like I aaid I don't think we could keep him.
He isn't hinting he wants to leave, he's saying he wants to spend another year on loan at Atletico.
And even if he was going to leave Chelsea permanently, which I don't think he will be allowed to do, we would not be able to outbid a team that is playing in the champions league.
He will stay under contract at Chelsea because they want to keep him, he will want the virtual guarantee of champions league football they can offer, and they will pay him more than any other club will. If he has to spend a few more seasons on loan, so be it.