The reason why I believe that BTC has hit its peak is the following:
The upcoming and controversial hard fork to increase block size is just going to create two parallel block chains.
Bitcoin is stuck in a legacy system without any progress towards a goal.
Alternative modern block chains such as eathereum and dash are gaining lots of support from enterprises. Bitcoin is stuck as being used just as a currency and is failing to be recognized as a true asset due to its unregulated nature. Google Bitcoin ETF Denied