They mentioned during the PHB video that made the rounds this week that they'll be doing more and longer videos soon. So perhaps we'll see some stuff from that channel.
I know. I think that's probably the wrong strategy. The news/discourse cycle goes on without them and there's always going to be enough Hasbro shenanigans happening that there tends to be plenty of bad news that a more active marketing team would be working to negate with smaller, more frequent news dumps.
I suspect the WotC president resigning would have gotten a lot less attention if it happened simultaneously with "here's what halflings look like now," which doesn't require hours from the developers to shoot a video, then hours to edit into multiple videos and then days of management watching, wanting tweaks and signing off on.
This is a pretty inefficient system they've got going. I get that it's what they're used to doing, but they could/should also have some smaller stuff coming out more regularly that doesn't require so much work and so many sign-offs. Just release one small thing a week that is near-final. They could even have an announced schedule where it rotates between, say, a spell, a species, a monster, a magic item, a spell, a feat, etc., maybe even with a poll (with all of the options previously approved and vetted, so there's no downside between people voting to see "orc brute" over "urd" or whatever).
The big long previews also compete with news about books like Vecna or Infinite Staircase in the way that "here's a picture of a paladin from their spread in the 2024 PHB" would not.