PCI auditors, who play a pivotal role in the world of cybersecurity, find themselves at the crossroads of a rapidly evolving digital landscape. Leveraging their expertise in the Payment Card Industry Data Security Standard (PCI DSS), these professionals ensure that businesses adhere to the stringent standards established for credit card data protection. As we stride into the future, it's worth examining the trajectory of this field, underscoring the anticipated trends and transformations that could shape the future of PCI auditors.

The role of a PCI auditor is akin to the function of a sentinel in a digital fortress. They scrutinize a company's payment card processes, ensuring that cardholder data is handled in accordance with the best cybersecurity practices. This task becomes increasingly essential, given the rise in cyber threats that could potentially lead to substantial financial losses and reputational damage. So, what does the future hold for these digital guardians?

The advent of artificial intelligence (AI) and machine learning (ML) is poised to revolutionize the PCI auditing process. These technologies are designed to learn from and make predictions based on data, which could be leveraged to detect anomalies or patterns suggestive of a security breach. This method holds a stark contrast to the traditional, rule-based approach predominantly used by auditors wherein they rely on a predefined set of rules to identify potential breaches. While the rule-based approach has proven effective over the years, it lacks the dynamic adaptability that AI and ML bring to the table. Hence, auditors of the future might be seen harnessing the predictive power of these technologies to bolster their auditing processes.

However, the integration of AI and ML into auditing processes isn't without its shortcomings. One primary concern is the ‘black box’ problem, where AI's decision-making process is often opaque and difficult to decipher. This lack of transparency can lead to trust issues, particularly in a field like auditing where understanding the decision-making process is essential. As such, future auditors need to focus not only on adopting these technologies but also on making their decision-making processes transparent and understandable.

Simultaneously, the increasing prominence of cryptocurrencies and blockchain technology will undoubtedly have a profound impact on the PCI auditing landscape. As decentralized digital currencies that operate independently of a central bank, cryptocurrencies introduce a new set of challenges in terms of auditing their transactions. In parallel, blockchain, the technology underpinning cryptocurrencies, offers robust security features that could potentially revolutionize the field of cybersecurity. However, the adoption of these technologies necessitates that auditors acquaint themselves with their intricacies and potential vulnerabilities. Although the repercussions of these technologies on PCI auditing are only speculative at this point, their impact cannot be underestimated.

Furthermore, the future of PCI auditors will be shaped by changing regulatory environments. As cyber threats evolve, so too will the laws and regulations designed to counter them. This will require PCI auditors to continually update their knowledge and skills, further emphasizing the importance of continuous learning and adaptability in this field.

In conclusion, the future of PCI auditors will be marked by the integration of advanced technologies like AI and ML, adaptation to cryptocurrencies and blockchain, and the navigation of ever-evolving regulatory landscapes. Although these changes pose new challenges, they also present opportunities for auditors to enhance their capabilities and elevate their profession. Moving forward, it is imperative for these professionals not just to adapt to these changes but also to spearhead the evolution of the cybersecurity landscape. True to the nature of their profession, PCI auditors need to remain vigilant, adaptable, and future-ready.