I think the major obstacle to this event becoming official is the scrambling issue. Some questions to answer:
- Is random state possible for Kilominx?
- If a solver is found, how many moves is the solution (and thus, how many moves is the scramble)?
- Will the scrambles need to be done using 12-sided notation? Or is there a reasonable way to make scrambling more efficient and accurate? (Maybe having scrambling phases with 2-3 rotations in the middle, only turning on parts of the puzzle in each phase?)
- If random state is not feasible for computers or for scramblers, is Pochmann notation enough for Kilominx? By that, I mean:
- Are key features of scrambles that should be uniformly distributed still uniformly distributed with this random-move scrambling? (example of center permutation on Mega scrambles done by Stefan)
- Are scramblers reasonably accurate (>80%) with this notation?
I think once enough support for the puzzle has been held for a long time and these issues have been figured out and enough WCA parties are in support as well, the rest of the issues are trivial for making this an event. But I really think an appropriate scrambler needs to be found for this puzzle, and that's not a small amount of work.