Main topics I can think of:
- WCA is gonna remove Clock, but introduce FTO next year.
- WCA is gonna adopt / enforce 4-pad timers next year.
- Heated arguments and rivalry between top cubers (Yiheng Wang and Xuanyi Geng), but mostly because of their parents. Look up, it's a very lengthy topic.
- Yiheng was accused of cheating (timer sliding) across many competitions. WCA did much less than most people would wanted to. Again, it's a lengthy topic.
- Head-to-head format was introduced in some WCA competitions to make it more spectacular.