That is way further ahead than tsuji. While I am skeptical that tsuji will come in 2020 he already has a working model. We are very far away to creating what you said.
I don't believe the second part. If we understand what makes some peoples follicles dht resistant maybe we can replicate that. IIRC brotzu being a vascular surgeon believed (at least in the begining) that hairloss is mainly a circulation problem. Fullheads have better circulation hence why they keep their hair. To put it simply better circulation means that dht and all other things which cause your follicles to shrink don't have that effect on you, or with better circulation come other things which makes your hair less susceptible to dht like more oxygen or something.(this is purely speculative btw). Makes sense in a way to me considering that to most Androgenetic Alopecia sufferers it's the hair in the top of the scalp who usually falls and it isn't strange to think that blood has a tougher job to get at the top of the scalp in confront with other areas. This is only a halfassed theory, but I said it just to show that making your current hair immune is not an unthinkable idea. Maybe tsuji will come before this so it won't be needed who knows.
And now I have an idea, some brave soul should try to experiment in staying upside down for some months and see if there is any regrowth.