The way I see it. it's like a super fast bitcoin experiment, when we get to 1 coin per block. Perhaps a 0.05% transmission fee will be enough to keep the mining going. Example 1,000,000,000 coins going back and forth per block nets 500,000 coins per block to the miners. 0.05% is just an example it can be lower or whatever. Plus isn't this how bit coin is supposed to work after the last block???

edit: math off