Just the highest in the near future is $2. Coin has $10 potential with the 108M supply and 12M Marketcap. Would easily achieve it with a testnet and listed on Binance or Bittrex.
I don't think the coin will ever exceed $10-$11 though.
Why do you never see it exceeding 10-11$? If all goes to plan and they have a working network on mainnet by april, then actual usage volume could significantly grow by 2018 end. Anyway that's far in the future and highly speculative.
Have any of the devs mentioned what progress is on listing for other exchanges? Have they only just started negotiations or are they further along?