In an ever-evolving epoch of global commerce, the role of US Customs Brokers is going through a fascinating metamorphosis. It's an intriguing panorama, steeped in intricate legalities, cutting-edge technologies, and nuanced economics, all framed by the inescapable hand of history. The landscape of this profession is changing rapidly, driven by various factors such as advancements in technology, shifts in regulatory frameworks, and the changing dynamics of international trade.

Originally crafted as intermediaries between the government and importers, customs brokers have traditionally been responsible for ensuring that goods cross international borders smoothly and legally. They understand the maze that is international trade law and use this knowledge to facilitate the import of goods into a country, in this case, the United States.

The dynamism of global trade dictates that this role is constantly evolving. The contemporary customs broker is no longer just a facilitator but a strategic partner, leveraging a blend of legal acumen, technological prowess, and logistical expertise to craft seamless import experiences.

One critical factor influencing this evolution is technology. In the era of Industry 4.0, technology plays a pivotal role in the day-to-day operations of customs brokers. The ubiquity of Artificial Intelligence (AI) and Machine Learning (ML) is leading to the automation of monotonous tasks, such as the classification of goods, streamlining processes and creating efficiencies.

However, the adoption of these technologies comes with its own set of challenges, the most significant one being data security. As customs brokers handle sensitive information, ensuring the privacy and security of this data in an increasingly connected world is paramount, demanding robust cybersecurity measures.

Another technological trend reshaping the role of US customs brokers is Blockchain. This decentralized system can enhance traceability and transparency in supply chains, reducing fraud and illegal trafficking. It offers an immutable ledger that can assist customs brokers in verifying the provenance of goods and ensuring compliance with trade regulations.

On the regulatory front, changes are afoot as well. The emergence of the Single Window System, an initiative aimed at simplifying the trade process, allows businesses to submit all import, export, and transit information required by customs and regulatory bodies via a single entry point. This development has implications for customs brokers, necessitating them to adapt to the new systems and regulations.

Additionally, the dynamics of international trade are also influencing the role of customs brokers. The tectonic shifts in global trade patterns, catalyzed by events such as the US-China trade war and Brexit, are creating new opportunities and challenges. Customs brokers have to keep pace with these changes and guide their clients through the murky waters of international trade regulations.

In conclusion, the future of US customs brokers is one of transformation and adaptation. Technology, regulations, and trade dynamics are reshaping the profession, demanding a new breed of customs brokers who combine legal expertise, technological proficiency, and strategic vision. This shift, though challenging, also offers intriguing prospects. The new customs broker will be a strategic partner in the truest sense, helping businesses navigate the complexities of international trade in a rapidly evolving global landscape. The future, indeed, looks promising and exciting.