Would love to see a T20 or even T10 cricket in there. West Indies would be broken up into separate countries though. But there's plenty of countries outside of the Test nations on the T20 circuit these days. UAE, Oman, Kenya etc... Would certainly think that would be more suitable than head spinning. I think speed climbing is in the Tokyo Olympics. I think that could be a good watch.
Did anybody watch the World Tag Championships on Channel 4 the other week? It was surprisingly very entertaining, and definitely lots of skill and athleticism involved.