I can't believe I didn't mention this on here before.
November of 2016, DC animation released the show Return of the Caped Crusaders. It featured the old school Batman and Robin, circa 1966, voiced by the originals (those who were still alive at the time). It was as perfect a thing - being what it is - as you're likely to find anywhere.
Here's the trailer for that:
Fortunately for us before his passing Adam West had just finished recording lines for a follow up to that: Batman vs Two Face. It's available for download today and Blu-Ray (etc) shortly after. My plan is to watch the shit out of it.