Bitcoin is the main cryptocurrency and it will be like that. The other coins are just a complementary for the existence of bitcoin. So, bitcoin is the future along with the other alts that able to survive in crypto world.
We'll I'd still believe in the potential of bitcoin to become a great cryptocurrency in near future. We have already seen bitcoin during it's victory last year and now we've also witnessed the downfall of bitcoin but still bitcoin has it's value that was worth it to consider. Both Ethereum and bitcoin has a value but I am very favourable to bitcoin.