I think opportunnities may be more limited than over the last 10 years as the UK F-35 force spools up, as several RN officers spent time with USN/USMC post-2010 to maintain knowledge of current ops (Including the RM officer mentioned above, and 'Wings' on HMS Queen Elizabeth), including multiple tours Stateside in some cases. BUt equally, I'd imagine the 'routine' exchanges would continue