It's been a year since Kevin Conroy made his Arrowverse debut as Bruce Wayne in the Crisis on Infinite Earths crossover. Due to secrecy, Conroy signed on without seeing the script, and he admits it could have gone better. Conroy revealed the inside story as well as the fan reaction while appearing on the Inside of You with Michael Rosenbaum podcast, which I found on Batman-News but the full podcast can be found on YouTube
“The fans were not happy about that. They didn’t like seeing that version of Bruce Wayne. But for me it was fun, it was a lot of fun to sort of stretch my acting chops a little bit. They didn’t tell me anything about the Batman. They just said he was the Batman in the future, an old Bruce Wayne. I said, ‘You mean like in Batman Beyond old Bruce Wayne?’ They said, ‘No, he’s not 80. But he’s older and he’s in bad shape.’ They’re so guarded with their scripts, the studios, they don’t give them out. So they didn’t give me anything. I got the script basically when I was about to get on a plane to fly to Vancouver to do the show, I hadn’t seen anything. I said yes because I was so excited to do something on camera again [after] 25 years.”
Personally I feel bad for Kevin as he knows there was backlash, and he doesn't know there are people who did love seeing him, or it might just be me reading too much into it. Regardless on whether fans love or hate it, Conroy did do great as a Batman in the crossover. Heck, to many, Conroy is still the Batman.
He is right in that not every fan was too happy about about what the CW/showrunners decided to do with him, but for diehard fans of Batman: The Animated Series (like myself), seeing Conroy in live-action was worth it. Obviously, I do want to see him come back and be more heroic, or at least the Batman we wanted to see.
Forgot that it technically hasn't been a full year yet. I was thinking of the date he was announced, which did happen August of last year.