I think this should not be news to people on this forum, in the last bull market we have experienced this already. Most of the altcoins did not really increased almost at once within a year but it extended to 3 years from 2023 to 2025. The old coins later increased, followed last by the privacy coins like monero, zec and dash. Another thing is that bitcoin marketcap did not fall like people expected.
But this is what Crypto exec said recently about upcoming altseason, that it can not be like how it was in the past also which I totally believe.
https://cointelegraph.com/news/altseaon-dead-short-cycles-violent-rotationKnow that many coins will still increase 5, 10, 25x more but it will be few at a time and many will disappoint.