We need to innovate together to take BitCoin to 100-500k USD level.
No more innovations means BitCoin will die. Anything which does not evolve can not survive for long.
Reaching that far is great dream, yet, Bitcoin doesn't stop evolving so it might - but not as soon as now. Some core developers still processing of having a lightning network (I don't how fast is that), that will make Bitcoin more valuable.
We don't use gold to make everyday payments, yet it is still the most valuable metal there is.
You are right. That is why real estate business is one of the greatest investment of all time - except gold, the value is increasing as time goes by, but like what you said, we don't use real estate as payment solution.