The token's market dominance stood at about 40 percent as of Wednesday. By my estimates, however, it's clear bitcoin's market dominance should return to 75 percent of the entire space.
I slightly disagree with you here. Can bitcoin bring back 75% dominance? Absolutely, but from my point of view it is highly unlikely. Many people are entering the crypto scene and they opt for altcoins, because alts can bring you more profit. Many projects have their own coins which should be the driving force towards the alt market. Bitcoin should have highest dominance because, as we can even see market is structured in a way that it follows bitcoin.
I see more money to flow into alts in future and from my understanding 75% might be to high.
Most of the altcoins are relying only at Bitcoin so if Bitcoin will go down they will go down too. As Bitcoin is improving always i bet it is a little too hard to attain 75% dominance as the market is taking it slowly. I only see dominance when there's a huge fork coming and after that all those FUD will take the next step as people were like riding a wagon.
50% above is still higher for me, it's not still bad.