The 6G era will soon be upon us, providing unprecedented global connectivity, capacity, and coverage for thousands of new applications, and billions of new devices. What role can information theory and its rigorous approach to thinking about communications play in 6G? Can information theory continue to help push the boundaries of communication systems? What are key bottlenecks and problems that information and communication theorists should work on in the 6G era? The goal of this special issue is to explore questions such as these and help frame the important theoretical research questions for the next 5-10 years at the intersection of information theory and wireless communications. White paper submission: 1 March 2023.