It can happen and those tokens, in most cases, get burned. Some projects decide to reuse the unsold tokens but that brings a certain level of distrust towards the team from the community.
Thank you for the answer.Yes,i agree with majority that best way to deal with unsold tokens is to burn them,thats why i asked about it.
its not officially
can you explain where you get this info ? because im still not found about that on website or whitepaper.