We don't know what can ETF bring but that's one what the community is waiting for.
But I don't think it will have the impact that everyone is expecting.
i dont think that something movin up, there are about 150 new coins/tokens added to coinmarketcap each month, i guess thats only that give a overall market cap sum to be about 200-210 billions, but maybe im wrong, of course its just a opinion of simple user
But soon they are going to be lessen due to the fluctuation of best coins such as bitcoin.
It has effect for now but all of those market cap from those new coins will go big coins like bitcoin.