Monolith Soft, the developer behind the Xenoblade Chronicles series, is hiring for a Legend of Zelda project. This was discovered on the ResetEra forums. Upon visiting Monolith's job page, you'll find a Legend of Zelda logo, alongside Japanese words. According to the forums, the translation says the company is looking for technical artists, designers, programmers, and support staff.
Apparently Monolith is working on two projects, with the second being the Zelda one. Interestingly, back in November, we found out that Nintendo was hiring for a new Zelda project as well. It's unknown if these two are related, or if the Nintendo job listing was referring to the Link's Awakening remake on Switch. Either way, there is something Zelda related to look forward to in the future.
Monolith Soft isn't unfamiliar with the Zelda series. The company helped out with Skyward Sword. Most notably, Monolith had a big hand in developing Breath of the Wild. As Nintendo Everything reported in 2017, Breath of the Wild producer Eiji Aonuma said Monolith helped to make "topographic arrangements" for the game. In short, Monolith is responsible for some of the environmental aspects of the title. With Monolith back, this new Zelda project is already being anticipated.
With Link's Awakening and Cadence of Hyrule releasing in 2019, there is no shortage of Zelda titles. Still, many are awaiting the next big game in the series. Breath of the Wild is over two years old now. Between the big video game companies, Nintendo is the one that relies on ongoing IP the most. Nintendo will always be making Mario, Zelda, and Pokémon games, so these franchises can't stay idle for long. Nintendo knows Breath of the Wild was a success across the board. So, the company is likely considering how to follow up to such a mega hit.
Could we get a literal "Breath of the Wild 2?" It wouldn't be unheard of. After all, Super Mario Galaxy released in 2007, and the sequel, simply called Super Mario Galaxy 2, released just three years later. But, every main Zelda title has been different, so it's more than likely the next game will not be Breath of the Wild the sequel. The open world concept will likely return, however. Aonuma himself said in an interview translated by IGN Japan that open-air "will probably be the standard form" going forward. Of course, whatever Zelda project Monolith is working on is not formally confirmed, so we'll have to wait and see.
In the meantime, if you haven't already played it, The Legend of Zelda: Breath of the Wild is available on Nintendo Switch and Wii U.