Check it out: https://twitter.com/Bancor/status/1177988378626859008
when it will happen in which tokens, what are the conditions for participation and what volumes.
Everything's explained in detail in the following article - https://blog.bancor.network/the-bancor-airdrop-is-coming-42d78709427f
'To prevent trader manipulation, the exact date and time of the snapshot will not be shared. In December, immediately after the snapshot is taken, we will announce the snapshot has been completed, and the airdrop has begun. The airdrop will occur over the course of the following two weeks.'