Tip: If you give a Muncher tile custom graphics, it will still act like a coin when a silver P-switch is active, whether it looks like a coin or not. So make sure to use ExAnimation if there's a silver P-switch in the area.
There's already two contests/events happening now. Idol 9, and the Pokémon Showdown Tournament No. 7. If I had to guess, it's just a matter of bad timing as to why they haven't started the next level contest. I don't think they're willing to handle there being 3 contests running at once.
...and if you've played Pokémon before, sign up for the Pokémon Showdown Tournament TBH.
Unlike VLDC, where we just need to prep a ruleset and dates before we begin the contest, our plans for BLDC require a hefty bit of organization on the front end and we've had some trouble finding time to get it all put together. We still want to do it, and I apologize for how long it's taking for anything to come of it. If we can't get it together soon enough, we may push it back to VLDC's traditional start time of January.