I just noticed that this year they are offering a “Meta Suite,” described on their website as follows:
You can purchase the suite for a discretionary donation here: https://www.theindie500.com/registrationIndie 500 wrote: "Where on the Globe Is Carla Sacramento?": An interconnected set of five meta puzzles plus a final meta-meta puzzle, available by donation. These puzzles share the travel theme of the 2019 tournament, but are otherwise unrelated to the tournament puzzles.
You can also register for the tournament at this link and purchase past puzzles (no metas that I see). I just signed up for the Meta Suite, and I immediately received and email saying the puzzles will be ready and arrive by email in the next few weeks. On Twitter, they said it will be released May 6.