In case, there will be unsold tokens, what will happen with them? will be burned?
They're distributed to buyer pro rata at the end of the sale
Will unsold tokens be distributed as well to bounty campaign participants, or only to the investors?
This is important due to the large influence that such a situation may have on the token price. (depends of course on % of unsold tokens)
Ps. If tokens will be distributed only to investors, bounty can be even 50% lower than it was guaranteed.