Maybe we should. Not enough information, the movie was scrapped, and there's a Joaquin Phoenix movie coming out that's not canon to the DCEU that people could confuse the page with. I think it's best to delete it.
I just deleted it. You're right, as it has been reportedly "shelved", although it probably in WB terms, "cancelled". Jared Leto caused antics on set and his joker portrayal divided fans like BvS did. This led many to see him negatively. I agree, its for the best.