Bitcoin is less of a currency and more of an asset class. Finite supply is a fundamental feature of Bitcoin. No compromise on it will be accepted.
In addition, Bitcoin been more of an asset than currency is what will make people have more interest in it and if the total 21 million supply which was planned change today it displease some people and the banking sector who are actually after Bitcoin will definitely laugh. However, I believed the limited number of Bitcoin was also sett as a means where Bitcoin will give chance for another coin to take the crown as we both know no one can ever be king.