Some ideas for nodes reward:
- Creation of a "mother's account" at coin launch.
- The password of this account is unknown, random, and only software knows it.
- Fees go always to the mother account.
- Periodically nodes receive proportional or random rewards from mother account.
- If the account balance decreases, fees rise, if balance rise, fees decrease, automatically.
This would also allow bounty the account initially, to provide fees were minimal in the first months.
I do not know if it would be possible or secure, but would be a decentralized system. Perhaps this could be included into client software too.
Sorry for my English, is not my original language.