Yeah, in 5 years XMR is about 18 million coins. The scenarios are really a matrix of [crypto total marketcap
x XMR's share of it]. If we make the most positive case a 1000 times higher marketcap ($4,000 billion, 5 times Apple's marketcap) and work from there making each order of magnitude a scenario of its own, we get approximately the following for
general crypto:
1) $4000 billion 5%
2) $400 billion 15%
3) $40 billion 25%
4) $4 billion 30% <- this is the current size of crypto, at the bottom of the pit.
5) $400 million. 25%
This is a very rough but useful classification.
Then, again very simplistically, XMR can command a large or small share of the market. Let's say:
1) 3/4 of the market (domination) 1%
2) 10% of the market (second coin) 4%
3) 1% of the market (alive) 10%
4) 0.1% of the market (unsettled) 15% <- this is the current position of XMR
5) 0% of the market (dead) 70%
Now just go and do the numbers

This is good work.
EDIT: Just noticed that this is for 5 years.