The five years time is to short and I just think we will be able to reach the 100k price in just 5 years, look at what we are now, it's been 10 years that bitcoin existed but we hardly even step on the $20,000 mark, i'm not trying to be as negative as it can be but even if we consider all the factors affecting the price $100k is just too far to reach, I would go with $50k perhaps but $100k, I doubt it.
I will also go with 50k dollars or more. I have no doubts in the potential of bitcoin but there are so many other factors that need to be considered before jumping to any conclusion. If bitcoin becomes legal after 5 years or in the time span of 5 years in all ruling states of the world economy, then are maximum chances of it going beyond 50k dollars. Otherwise it would take time to reach such big price.