In the realm of legal practice, there are few arenas as dynamically evolving as product liability law. The ceaseless tide of technological innovation and its subsequent diffusion into the marketplace has invariably implicated the brand of jurisprudence tasked with mediating defective product disputes. In light of this, envisioning the future trajectory of product liability law demands an insightful look into the complexities of its past, present, and the shifting landscapes of commerce and technology that beckon on the horizon.

Product liability law, to provide the necessary context, encompasses a legal framework where manufacturers, distributors, suppliers, retailers, and others who make products available to the public are held responsible for the injuries those products cause. The relevance of this framework lies in its ability to ensure a fair distribution of risks associated with products, thereby prompting manufacturers to maintain high product safety standards.

Historically, product liability cases emerged from English common law. The doctrine of caveat emptor, or 'let the buyer beware,' initially prevailed, placing the onus of quality and safety on consumers. However, the 20th Century saw a fundamental shift towards the doctrine of strict liability, empowering customers with legal recourse if products failed to meet implied or expressed warranties of safety.

In recent decades, the terrain of product liability law has been significantly reconfigured by the proliferation of digital technology. With the advent of the internet, e-commerce, and the subsequent surge in online product sales, potential liability issues have multiplied. This shift, coupled with the rise of global manufacturing and supply chains, has resulted in complex legal challenges stretching across international borders.

As we gaze into the future, several noteworthy trends and predictions can be discerned from the amalgamation of legal precedents, emerging technological innovations, and evolving consumer behavior.

Firstly, as the Internet of Things (IoT) and Artificial Intelligence (AI) continue to burgeon, product defects may increasingly originate from software malfunctions rather than traditional manufacturing faults. This change will necessitate a reevaluation of existing legal frameworks, which are predominantly built around tangible goods. When autonomous vehicles or smart home devices malfunction, causing personal injury or property damage, determining liability can become a complex task involving software developers, hardware manufacturers, and internet service providers.

Secondly, the legal concept of 'foreseeable misuse' will likely expand in accordance with technological advancements. This principle holds manufacturers liable for injuries caused by consumers using products in ways that are foreseeable but not explicitly intended. As products become more technologically advanced and multifunctional, the spectrum of foreseeable misuse could widen markedly, extending the liability of manufacturers.

Thirdly, the advent of 3D printing technology poses a unique challenge for product liability law. If a consumer prints a defective product using a 3D printer, who should be held responsible? Is it the manufacturer of the 3D printer, the creator of the design, or the consumer for improperly using the printer? These questions indicate the potential for legal boundaries to blur as technology progresses.

Furthermore, the global nature of modern supply chains means that product liability cases will increasingly cross international borders. This intertwining of jurisdictions will demand greater cooperation between legal systems and could potentially lead to the international standardization of product liability laws.

Lastly, it’s worth noting that the future of product liability law will undoubtedly be shaped by shifting societal attitudes towards corporate responsibility and consumer rights. The increasing consumer demand for companies to demonstrate ethical behavior and transparency may well lead to more stringent product safety standards and increased liability for manufacturers.

In conclusion, the future of product liability law promises to be an exciting, complex, and ever-evolving landscape. As digital technology continues to advance and penetrate every facet of our lives, the legal realm must adapt and evolve commensurately. Legal practitioners, therefore, must remain well-versed in technological trends and vigilant of the changing tides of societal norms, paving the way for a future where consumer safety is paramount, and justice is served.