I Think If (SEC) has approved ETF for Bitcoin does not increase the price of Bitcoin. and its hard to see the price increase.
But still it will also stop those periodic pumps and dumps related to the SEC approval of ETF, many people buy bitcoin when the SEC hearing date is close and the price artificially pumps and when it gets postponed again the price dumps and this have happened a lot of times in the past that it has just become a trend for me and it doesn't surprise me now while watching this phenomenon. So if the ETF is accepted and this will move bitcoin into another market and people will be having more options then I think the bitcoin price will definitely rise.