It's still too soon but if you look at the whitepaper when released then you'll immediately understand the potential of this project. For example, there are only 42 million tokens at the most and possibly less than that will exist. The very limited supply makes it very easy for the token to get to $10 or $100.
At $100 it would mean a market cap of around 4.2 billion which is very reasonable for 2018. At $10 it would mean a market cap of only $420 million which is actually just a typical level for this kind of project based on Coinmarketcap. On Coinmarketcap Litecoin has over 2 billion market cap. NEM and IOTA have over a billion market cap and IOTA just launched.
So if Tauchain is just an average success we will see $10 this year but if it's a major success then $100 becomes possible in 2018 and that is being conservative. Considering how much money could be in the market in 2018, it's not as difficult as you think.