ARC-20 split (breaking the 546 limit) is of great concern to everyone. Let me share some information I know.
Although the current plan has been implemented, the design is not ideal, and the code has not been merged into the master branch. It will not be activated at 828000.
There is no technical problem in ARC-20 splitting. There must be a better design. It can definitely be achieved and it won't be too long.