No, it's only one round with all tokens.
20%, 18%. . . Where do these reward funds come from?
How many BLN rewards are there?
For example,
Alice 10000 BLK with 20% bonus receives 97560975.60972 BLN
Bob 10000 BLK with 10% bonus receives 89430894.30891 BLN
Carol 100000 BLK with 0% bonus receives 813008130.0810 BLN
Nice to see that things are moving forward rat4. I would really like to see some more in depth information though before the burning process starts, maybe a detailled roadmap, further plans for use of the platform etc.
I think it will help people greatly in deciding if or how much BlackCoin people would like to burn.
Launch

Fomo game
https://fomo3d.hostedwiki.co/pages/Fomo3D%20ExplainedTransaction bundling
https://www.jelurida.com/forging-bundlingFurther research:
Proof of stake
Decentralized exchanges
Lightning networks
Zero-knowledge extensions