People are moving their alts to bitcoins because of the fork. I expect them to move back to alts after.
But yeah, Bitcoin never really lost dominance. It just regained some lost ground is all.
Bitcoin was hammered by a lot of issue after its ICO posting, the price value goes up and down on the market treed, base on the date the question was posted on this wall Bitcoin market status encountered a lot of issues like Banned,Scammer and the issue on Regulation yet it remains number one among all other ALT coin posted on the trading market. with high level of confidence of investor, fundamental are stable, the price value still favorable to the investor with the ups and down on the trading market. I am optimistic, that once the volume of investment on Bitcoin increase, it will remain among the top of all ALT coin on the market.