The Osaka Japan Temple was first announced by Church President Russell M. Nelson in October 2023. 

Here's a third-party page about the Osaka Temple

Here's the Church newsroom's information from 4 Mar 2024:

Osaka Japan Temple

The Osaka Japan Temple will be built on a 16.74-acre site located at 3-50-1 Sugi, Hirakata City, Osaka, 573-0117 Japan.

Plans call for a single-story temple of approximately 29,630 square feet. This house of the Lord was announced in October 2023.

The preaching of the gospel of Jesus Christ began in Japan in 1901. The Japanese Saints have shown great devotion to the gospel. In 1965, many sacrificed time and wages to travel to the temple in Hawaii. In the 1970s, this devotion led to the construction of a temple in Tokyo — the first temple in Asia.

There are five temples in operation, announced or under construction in Japan. The other four are the Fukuoka Japan, Okinawa Japan, Sapporo Japan and Tokyo Japan Temples.

Japan is home to more than 130,000 Latter-day Saints in over 230 congregations.