Coming from the official La-Mulana dev blog…
As announced by some game sites, the Japanese release date of La-Mulana will be June 21st. La-Mulana will be released in Japan prior to other regions.
To our fans, you just have to wait a tiny big longer. We’re sorry, but we’re, of course, doing our best to deliver La-Mulana to you as soon as possible. Currently, we are done with the final check and just waiting for the release date to be determined. We will announce it as soon as we find out, so please wait a little bit more! Additionally, although a date has to be announced, we can confirm (again) that La-Mulana will also be available in Australia.
We are now working on the final check for NA/EU versions. It has been a little delayed due to the different processing systems that we are not quite familiar with. We will announce the release date as soon as we possible, so please wait a little bit more!