Here's a link to blurb city. I hope this is true, and we get some more from one of the DC Universes most laconic anti-hero's.
https://variety.com/2021/tv/news/constantine-series-hbo-max-1234909872/?fbclid=IwAR1tpqQ5nzYs4Ex0SV9Rh4CQad_I4gY4SM3eBHWHWu1O9ZWxB0ejsma5wXw
It was a shame Matt Ryan's tenure as the character didn't have the best material to work with, even before he turned up as a regular in the various DC television shows as Doctor Strange on a tv budget - though kudos to the wonderfully silly Legends Of Tomorrow for unambiguously making Constantine's bisexuality canon, and for not treating it like a joke in the way the show compulsively does everything else.