I think at 30k usd we will reach the top of the channel and the bubble will burst (What bubble? the one we are in).
At that time Ethereum will reach the top of it's channel in USD and will be worth ~1000 usd, which means that you will get 0.03 ETH for every bitcoin, which is almost the bottom of the ETH/XBT channel. With the burst, ETH/XBT ratio will go even lower, so we will reach the bottom of that channel too. This will mark the end of the mania phase. And the beginning of the bearish trend.
At that time Ethereum will reach the top of it's channel in USD and will be worth ~1000 usd, which means that you will get 0.03 ETH for every bitcoin, which is almost the bottom of the ETH/XBT channel. With the burst, ETH/XBT ratio will go even lower, so we will reach the bottom of that channel too. This will mark the end of the mania phase. And the beginning of the bearish trend.