Women's nordic combined: I am indeed afraid it will be added in 2022, there's almost no way around it. It's pure stupidity to add an event to the Olympics 4 years after a Continental Cup (not even a World Cup yet) is started, but hey, gender equality no matter what.
Speed skiing: I doubt it will happen, mostly for a lack of excitement. I mean, all you really see is someone racing down the mountain and that's it. No turns, jumps or something, it's just really 'static'. Sort of like a big water glide and then have a competition about who goes down fastest.
Women's team ski jumping: this is not ready for a team event yet given the number of top competitors...give it more years, have some patience so it can grow, but don't throw in a team competition just because gender quality has to be achieved as soon as possible and no matter what.
Biathlon single mixed: this is a fun event indeed, but perfect for exhibition events (like Biathlon auf Schalke) and not much more than that.
Ice climbing: I hope it will be added, it looks cool
Skiing big air: Nah, much like snowboard big air, it's just too 'meh'. There's no race, the action is so short and not even that spectacular...
Ski flying is not a different sport, it's just a part of ski jumping