The revenue structure for Bitcoin miners may undergo significant changes in the future. Currently, miners earn through block rewards and transaction fees. However, with Bitcoin's halving events reducing block rewards every four years, reliance on transaction fees is expected to grow. By 2032, block rewards may become negligible, making transaction fees the primary revenue source. This shift could challenge miners if fee markets remain volatile or if transaction volumes don't scale sufficiently. Additionally, advancements in mining technology, energy costs, and regulatory pressures could reshape profitability. Miners may need to diversify income, such as through merged mining or off-chain solutions like the Lightning Network, to remain viable. Market competition and Bitcoin’s price will also play critical roles in shaping future revenue dynamics.