ETH will go POS with annual returns of 7-15% but...
10 million ETH currently locked for trading and waiting for the kiln network to be activated.
This is a huge gamble because nobody knows if it will work, or what the price of ethereum will be afterwards. The Ethereum network will be vulnerable for attack during the transition, and small bugs or problems will probobly cause panic and price decline.
1. Hedgefunds and traders will sell Ethereum as before it goes POS and convert to other POW coins. (Historically a smart move)
2. In the short term after the merge, miners will need to dump 1 usd billion worth of ethereum to cover the electicity cost, and probobly move the rest of their funds over to other minable coins to support mining.
3. When the 10 million ethereum finally unlocks and the price has fallen, the value might decrease further. Because 7% of $300 ? was not the profit the investors signed up for..
May be this is the beginning of the ETC/ETH flippening. With the support of all miners, anything can happen. And there is still a lot of room for an exponential growth.
Make sense to swap ETH with ETC. With the increased mining, Ethereum Classic will become much stronger and secure than Ethereum.
With a flood of miners entering the coin and supporting the network we might see exponential growth.
With 1 Ethereum Classic at $3000 and Ethereum at $300, the mining profit will stay the same as before. NVIDIA and AMD can continue to flood the market with graphic cards and make $$$ billions...