It will be similar to the ethereum and bitcoin narratives: certain companies submit solana ETF applications to the SEC; the SEC approves the Solana ETF; and a pump occurs in solana.
That is not new in the cryptocurrent, but I still doubt Solana's chances of being accepted by the SEC. You know how many scam tokens were available on the Solana blockchains.
Though the chances of approval are high, I believe it will take longer for the SEC to analyze this application due to the numerous problems that have previously occurred in Solana.
I only expect an initial pump with solana, but it won't be as huge as bitcoin or ether.