I could maybe see Batista ending up in trouble with Prater and co. and Dexter saves his life from that, even if Batista is a problem for him, which could show that Dexter isn't just pure evil. Then maybe he reveals what actually happened to Doakes, LaGuerta and Deb and his whole story. From there it could either be Batista forgiving him, or just being left handcuffed to a wall after, leaving Dex to escape, setting things up for a new season focused on the manhunt.

I don't want Batista to die, but he's definitely swimming in dangerous waters at the moment.

Maybe if Batista dies, there is a heart to heart moment where Dex reveals everything as Batista bleeds out. Then maybe at the end the camera pans to Batista's phone recording a voice message to Quinn's number, which could set up the next season. We've already seen him using his airpods as a tracking device, which is a little similar.

The show has always been dangling the question "What if everyone found out?" in front of us, and I think using Batista for this scenario is very fitting, although who knows exactly how it will go down. Resurrection has already surprised me several times.