I don't know. But I do know what it can't be for.

It can't be for reporting on events happening right now that legally require an  immediate disclosure.

That would include a take over, a buy-in, a major contract or new partnership. It also includes all other events that reasonably could have  a significant effect on share price. So it's likely a house keeping item, or approval of warrants for management, or something that else that would reasonably be expected to not have a major effect on share price.