Found this clip that was posted yesterday. For you who speak portuguese it might have some info or just be interesting.
I think @rafalele speaks the language.
You might even summarize it if you feel like it and have the time 
Is that our friendly @Oktagon_Daiane at the end (5.19)?
Whelp, time to learn Portuguese
she’s pretty :3
Wait, is Oktagon a Brazilian company? That explains why we’re not getting any updates, they’re all watching the World Cup all day!
Now what I really want to know (besides what they’re saying, wow youtube translation is awful) is where we can get those badass animations.
They look awesome.
Great to know that Oktagon is brazilian too. I will open my tickets in portuguese now : )
Translate for us
¿Por favor?
I understood that m19 will be launched in mtgpq…
but I hope HOD and origins does not rotate.
Can you translate for us
pretty please!
This was translated by one of the players in Extinction that speaks Portuguese:
First part he says he is on the city where the game mtgpq is produced. Ronaldo Cruz is one of the founders. Talks about his passion. He talks about his background and the start of the company. They talk about the mechanics of the game next and the connections to MtG and how complex the game is. Next one is Pedro he designs the card based on the paper cards. They start working before the set is released. Matheus talks about what cards are coming and which are not. Each one stays with one colour. He loves the red cards so he designs those. They try to get a feeling about the story, tribes, mechanics etc. And then he says that about M19 he can’t say anything. Dayane talks about the community. They try to keep the players expectations high and try do address and adapt their requests. She gives the example of Dominaria. I guess she is talking about the historic cards. Arthur follows the release of paper cards and the adaptation to mtgpq.
Thanks JarethLeonin!
Another video about Oktagon/ MTGPQ:
Here’s the summary of the second video:
Oktagon invited that guy. I guess is a Brazilian MtG YouTuber to visit their office. Once again they mention M19 but can’t say anything else. They also seem to hint on other sets that should be coming in the future as they talk to wizards troughout the process and send them stuff for approval. @Oktagon_Daiane talks about how her job is to pass the players feedback to the game designers and see what and how they can implement it. And from what I understood their office is on a cowork space. The guy said he will have one more video with them.
Thanks for finding, sharing and translating the videos!