While the title of the tweet says it is an "animated series",
the article actually clarifies it's a webtoon and comics. It goes on to say that fans will "enter the story of the 'Mikuverse'" and it combines live-action, animation, and music. It says the story is supposed to be modern and that Hatsune Miku is getting "an exciting new look".
(Personally, hearing "webtoon", "live-action", and "exciting new look" have me worried... I am wondering who they will get music from, since music licensing tends to be an issue with Miku activities like games/concerts.)
The two companies involved are Graphic India and Carlin West Agency. I will talk about each company.
Graphic India is led by
Sharad Devarajan. They use graphic novels to develop into live-action movies, animation, and games. They focus on creating characters to spread the culture of India. Sharad has an education that focuses on technology, globalization and teaches. Working with Stan Lee, he helped create Chakra the Invincible for Cartoon Network. He has done other work relating to super heroes and comics in India.
Graphic India features animation, comics, and motion comics that seem centered around the culture of India and heroes. You can read samples of their comics on the website (they look nice). Some companies they have worked with include Disney and Cartoon Network.
This is their Twitter account:
https://twitter.com/GraphicIndia
Carlin West Agency is led by Carlin West. The company is based in New York and Carlin is a woman. She used to be the Executive Vice President at 4Kids Entertainment (western fans might be scared by this, haha). Carlin took care of brand acquisition, licensing, and PR for 4Kids and is responsible for Pokemon, Yu-Gi-Oh, The Winx Club, and many more. Carlin West Agency focuses on licensing, branding, PR such as events, and trade shows. Their current list of associated brands includes Miraculous Ladybug, The Winx Club, neopets, and even Hatsune Miku is listed. Their social media appears to be less than 1 year old and does not have much activity on them (aka basically no posts and no followers).