In the closing moments of Season 1, Ansel opened his front door to reveal his long-estranged mother, whose appearance stunned older sister Dex. It was then that the episode cut to black, before viewers got a peek at Mama Parios, who would’ve been formally introduced in Season 2.

But ABC rescinded its renewal when COVID delays made a second season cost-prohibitive.

https://tvline.com/lists/cancelled-tv-shows-cliffhangers-series-finales-endings-hannibal-agent-carter/stumptown-cancelled-ending/