I think this setup is likely. I wouldn't short it but I think everyone is crowding into the trade because of the forks and it might still go a lot higher for several weeks. Ultimately, I think people will take profits and jump into alts just before or after the forks and we'll get a long term retrace. It would actually be really healthy for the market and set up more big money to enter crypto going into 2018. Even big finance firms are talking about putting clients into BTC for diversification. They won't do it at ATH.