In the future it might be better if the money is not from debt. Money may come from services performed, such as miners, who confirm every transaction and get the reward. and all of that is not controlled because of decentralization.
I dont think some time in the future debt would be totally eliminated.
Debt is plays an important role to the economy. There will be times that a country will need more funds to build infrastructures and to sustain some developmental projects. The government would then have to borrow for the operations to start. Same goes with big and small enterprises. These businessmen tend to borrow money from the banks to improve and to expand their businesses. They allot their funds for the betterment of their establishment to gain profit. And the list goes on and on.
You see, there are good debts and bad debts. What should be done here is not eliminating debt, but spending wisely the money you borrowed to turn it to be a good debt. In addition, one must pay on time to avoid unnecessary accumulated interest rates and to retain your reputation as well.