How much will 1 bitcoin be worth in 2026/27?
No one can tell!
Even the creator of bitcoin can't predict bitcoin's price at that year. Satoshi also did not expect that bitcoin will grow this far the way we saw it today, so much expensive unlike before. It was like, no one can exactly tell what will be the future mate, so no one can give you an answer! And what's the point of knowing bitcoin worth at that year?
One of satoshi's famous remarks was that in the future bitcoin will be worth a lot of money or nothing at all, and in my opinion he was right, bitcoin will change the way we conduct business and use currencies or it is going to fail miserably and the banks will keep doing business as usual and we are still not sure which of the option will become a reality but it is very clear which one I think is the most likely since I'm in this forum.