Analysts are signaling the potential onset of Altseason 3.0 as Bitcoin's market dominance approaches key levels reminiscent of past altcoin booms. Historical patterns from 2017 and 2021 suggest that altseasons typically follow peaks in Bitcoin dominance. Current technical indicators, including the ETH/BTC ratio rebounding from major support, suggest an imminent capital rotation into altcoins. Market experts, including DrBullZeus and MrBigDott, highlight a four-year cycle pattern, with previous altseasons occurring in 2018 and 2021. They anticipate the next altseason to emerge in early to mid-2026, aligning with Bitcoin's post-halving cycle. The Altcoin Season Index, currently at 30/100, shows an upward trend, indicating a potential breakout if it surpasses the 50 mark, which could confirm the start of a new altseason.