Well I do think we can be expecting to see a Solanan etf at any time very soon. Now that we have them for Bitcoin and Ethereum we can think it will happen for Solana to be the next coin.
The sec did start a bidding process for the next Solana etf. So I do think we are going to get a big pump and we should hodl this coin.
If the process will go through smoothly (which is probably not the case) - surely, a pump will follow. But I do think that SOL and LTC deserve their spots in ETFs - they have the potential to make it happen and to profit from it adoption-wise.