If you end up with higher and higher bitcoin, then it is not "alt" season because bitcoin is increasing as well, that makes it a whole crypto bull run. The moment bitcoin stops going up but others keep on going up, that will be alt season.
Check out coins like Ethereum and Tron, Binance Coin, and some others have all been increasing in value. But I can’t say for sure how long we are going to be seeing this increase, it might also be one of those short bullish moments that the market goes through from time to time, and not a major bull move.
All other alts are moving because BTC has started to move and as always when BTC moves so do the rest of the coins. In my view, it is slightly too early to know if the alts-bull is in full swing or if it will be anytime soon.
Yes, the markets are improving but it all depends on BTC and BTC itself depends on (in my opinion) on institutional investment. Let's see how it plays out...