Supporting him is what the team needed to encourage him to continue working with his weight. That particular issue might bring problems with him, but the determination to win back and recover his belt should be a must. Ancajas needs to adjust and exceed from his limitations to take this rematch. He's a known fighter, and he needs to work it out. By any means, he needs to be there and try to beat Martinez with all the collective strategy that his camp collects and executes.
I watched the first fight and I believe Ancajas can take the punches of Martinez but he is a bit slow both in throwing punches and reflexes that is why he was dominated by Martinez. In upclose fight, the one with shorter reach has the advantage because he can fully swing his punches while the one with a larger wingspan needs more time to swing his punches due to the bigger radius. Ancajas must take advantage of his height and reach this time. He must train throwing jobs and straight and move more than engaging in a brawl.
He was slow because he got tired, he does not look conditioned in that fight, so this rematch is going to be his last chance to prove that he can still reign in this division. Good thing nowadays that rematch is happening more, especially if the champion losses in a match, so one last chance to get what he thinks he deserves.
If Ancajas has problem with meeting the weight limit in his current division, I think he must move up.
I'm sure he is considering that as his plan, in case he failed again this time.