Yes I do think another ETF is going to be 'bullish' for Bitcoin right away. And now the world's largest crypto index fund manager has released a new commercial about spot Bitcoin ETF.
I am tempted to agree that a correction will happen. I have no technical analysis to back this up, it's just a non-professional opinion. In other words, it's just a theory.
If/when ETF is approved, Bitcoin price will rise, but I believe it would just be a short-term impact at first. This will be because there will be so much demand for Bitcoin forcing the price to rise, but after a while, there may be a huge amount of sales causing the price to drop.
The price will go up again because of course after a lot of people have started buying the dip.
This theory depends on when it would be approved, and the time between the approval and Bitcoin halving.
Not many investors would want to sell their Bitcoin when they know a halving is close.