Well, it's hard to speculate what the level of hype will be, but a while ago, I did some calculations on hard numbers.

Long story short, the remittance business is between $200 to $300 billion industry worldwide. Cross-border payments will soon be $400 billion industry. Together, $650 billion. If they capture just a mere 5% of that business, they will be dealing with $32.5 billion dollars. If 20 billion Lumens are in circulation at that point, that justifies at least $1.6 per lumen.

This does not include what Kik and other dapps will contribute.

This does not include unreasonable human hype that somehow pushed BTC close to $20k.

I don't know how fast they're progress will be in making partnerships, but i would expect $1 is attainable Q2 next year and $2 by Q1/Q2 2019.