Well the election is over and the Government has easily retained it's majority so if everything else was equal I would have expected some announcement from the Japanese Government in the next 2 weeks. Sadly everything is not equal and the assassination of Former PM Shinzo Abe must put any announcement on the back burner.
And just because you can book flights to Japan and hotels there for next year means nothing. We had an amazing trip booked for March,April this year with first class award flights on JAL and very cheap opening specials for the Intercontinental Pier 8 Yokohama. About 20% of current prices, needless to say it all fell through.
Although I still expect it to open later this year we have put off Japan travel until late next year.