btc not going to moon. there are certain things to be fixed for it not to be centralized which is why there is BU and segwit. if its not supported your btc will be worthless in the end. the altcoin frenzy isn't over so join the partey 
choose BU or be left behind!
Neither BU nor SegWit is going to prevent Bitcoin from being centralised, if anything BU is going to increase centralisation, especially with the continued backing of monopolies like Bitmain. choose BU or be left behind! And the altcoin frenzy is completely over, Ethereum and DASH have clearly reached their peak and have stayed there for a while now. Bitcoin prices have gone up on a rebound just recently, from ~$900 to ~$1000.
It seems that your speculation was not clearly to be happen, I don't think BU can defeat bitcoin at this moment. ETH and DASH was only Pump and Dump just recently, and now Dash crushed down 60% while ETH 40% crushed it down too. While as I expected and the others community here bitcoin now is coming back again for recovering the value to 1300$ so good luck for the altcoin what will happen.