I find it odd that no title has been settled despite the fact that we've passed the original release date
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The film was initially set for release on May 21, 2021, which would have premiered alongside John Wick: Chapter 4 also starring Keanu Reeves.[52] However, the film was postponed to April 1, 2022 due to the COVID-19 pandemic.[53] On October 5, 2020, the film was moved up to December 22, 2021.
Meanwhile, John Wick 4 has also been through shifting schedules, currently scheduled to release in May 2022. From the JW4 wiki:
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However, in April 2020 during an interview with Collider, Chad Stahelski revealed that the film will most likely not make its 2021 release date, due to his commitment on The Matrix 4.
Chad Stahelski, director of all 4 Wick movies, is also listed as the stunt coordinator in the first three Matrix movies. And he said he's working on the 4th.
I really think that all this points to the fact that Matrix4 and JohnWick4 are largely going to be the same movie. 70% of the movies will be same footage, with the Matrix having some "Matrix world scenes" as a backdrop to explain the plot. This is why they are being coy about a title for Matrix, they don't want to give it away. But the original plan was for audiences to be exposed to both films at the same time.