Bitcoin Dominance will be influenced more by fundamental realities than repeated patterns. Satoshi created BTC to be money or "digital gold" and not much else. This reality leaves tons of room for the best, most useful altcoins to thrive in the future. Solana (SOL), for example, is coming on really strong as ETH spirals into a continued slump due to it's flawed, and very shady beginnings.

The future will be extremely bright for the best altcoins.