I'd add cultured meat. It's for sale now in Singapore, but is being approved in more countries. Costs continue to come down, and factories are being built. And no, the industry is not limited to using fetal bovine serum. No company is going to scale production with FBS.

Cultured meat is just one part of cellular agriculture, though. Meat, dairy, seafood, cotton, wool, leather, gelatin, fat, coffee, and chocolate have all been made with cellular agriculture. Along with analogues of flour and plant oils. That represents a lot of farmland that could be returned to nature. And no, there's not even close to enough demand for housing to realistically say "nah, it'll all go to suburbs." We use 50x more land for agriculture than we do for all cities and towns and built-up areas put together. And 70% of that agricultural land is used for animal agriculture.

https://ourworldindata.org/land-use