Spoilers for 12.23

Since I got "yelled" at from another post about spoilers, hence the title.

Rowena, Crowley and Cass all dead? I could care less about Kelly. A lot of the finale felt rushed and then it felt really slow and like nothing was happening. Are we to believe these 3 are gone forever? And when a demon or angel die, where exactly do they go? Back into the pool of demons in hell and angels in heaven, or just gone, like the empty. Sorry for the verbal diarrhea but it's a side effect to season finales. Lucifer and Mary "stuck" in alternate world of desert dust, demons with horns and a Bobby. "Jack" naked on the floor with a creepy smile and yellow/gold glowing eyes - end of season.