I'd like to be excited, but Game Freak have a very long and established history of waving these things in front of our faces and not releasing them for two or three generations after the fact.
This is our shiny new toy, and you can't have it, so go and sit in the corner and be grateful that we deemed to reveal it to you peasants at all! Oh, and please buy our expensive DLC season pass and subscribe to Pokemon Home. Thank you for playing! :D
Oh, a new Mythical? Cool. I love Mythical Pokemon. I'm sure it'll be available through the free update, at least. I hope it's not as boring as Magearna, though. I loved Marshadow, Meltan and Zeraora from the last generation. Those were really cool.
I heard a youtuber theorize this new Pokemon will be promoted during Pokemon Day in Max raid battles? I honestly highly doubt it's gonna be locked behind the dlc or Pokemon Home.
Honestly, I really hope the Pokemon GO related thing, I hope it's Kalos Pokemon finally being added? We'll see.