I can only see a sudden fall if Bitcoin ETF is not approved and you may as well add your input on this. However, from now till 2026 will be promising for BTC as there would be favorable outcome. It is a game of patience.
If ETF is not approved, the price may drop temporarily but it will not last long. Bitcoin price has not increased since 2021 but will halve this year due to which BTC price will increase. The halving is only 3 months away and before that, several major US investment platforms are waiting for Bitcoin ETF approval. Many big companies have approached the SEC and they are confident that the SEC will give ETF approval to those companies even if it takes time. If approved then halving will take Bitcoin's ATH to a larger level and if not then naturally Bitcoin will exceed its prior ATH. If bitcoin is approved then good but if not don't be disappointed. Because Bitcoin doesn't depend on ETFs.