Why would you need any kind of PoS reward (other than transaction fees) really? Couldn't you keep a PoS blockchain running with transaction fees alone? Maybe have an ultra high interest phase at the beginning for initial distribution.
This would mean, that less people would stake, because there wouldn't be a lot to gain from it. This is counterproductive in decentralization terms, but if, let's say, a high two digit number can still stake with profit, we can assume that the network is going to be safe.
I think focusing on the transactions fees , may be the solution.
After the coin is rolled out, the client's wallet , has a variable flag set with either 0 , 1, 2, 3, 4, 5, 6, 7
Every 24 hours, that staking has been turned off , that # increases by 1.
Wallet comes online , once online , 2 conditions have to be met
1st Condition Wallet has to be in Sync
2nd Condition Wallet has to be in Staking mode
If both conditions are met , then for every hour the wallet is synced & staking , the variable flag subtracts 1 until it reach 0.
If you are at 0 , then you can send coins without any transaction fees,
If you are at 1, then you can send coins at 1X the transaction fees.
If you are at 2, then you can send coins at 2X the transaction fees.
If you are at 3, then you can send coins at 3X the transaction fees.
If you are at 4, then you can send coins at 4X the transaction fees.
If you are at 5, then you can send coins at 5X the transaction fees.
If you are at 6, then you can send coins at 6X the transaction fees.
If you are at 7, then you can send coins at 7X the transaction fees.
So if you have been offline for 7 Days, you have to be online for 7 hours to avoid the higher transaction fees.
It is also an incentive for People to Want Exchanges to stake, so their withdrawal fees are lower.
Anyone see any problems with this model?