We cannot tell when this season happen but it could start tomorrow or next following days but even if the market is now at unknown state
Altcoin season usually starts after Bitcoin investors are on profit. And that's already done.
So I also agree that the altcoin season may have been already in progress. The proper, solid, valuable altcoins did increase in valuation.
There also was the DeFi craze, there's also the NFT craze, what else you expect? Not all shitcoins will rise.
If you look at charts for last couple of months for Ethereum, Monero, Litecoin and many others, you'll see that the market is far from "unknown state".