Yes the actual plan is to destroy unsold tokens and make unspendable.

A better solution is that we will update the total supply on the code based on the final amount of tokens sold, so that no coins will exist over the exact amount of coins effectively sold.
We also know that a good way to distribute the coin would be split the unsold coins through actual investors. This will reward more our supporters to thanks for the trust.

What you think about this solution instead?