BU rapidly gaining mining support. When we reached 51% a HF is very likely. We learned from the Ethereum disaster (ETH/ETC split) that a drop by 50-70% is possible. I dont expect a long bear markets afterwards like with ETH though, since the scaling issue will finally be solved one way or the other for the first time ever and there is nothing else to prevent return to main trend. Therefore wait it out in Fiat, probably make some gains by shorting it. Dont miss the right moment for reenter - might be smarter to wait a bit longer and see which chains gains the maximum hash power.