The conference call at the end of September certainly suggests (at least to me) that there will be some significant news to come before that date.
We have experienced a long black out period. I can't see the value of a conference call if they are unable to respond to the anticipated questions or still be heavily bound to secrecy.
It would make more sense that they will have laid out the groundwork for the near future and will have given the public something to digest. Any concerns raised could then be addressed and clarified at that time. I would hope some names of interested parties or potential partnerships might be revealed, and possibly some numbers to go with them.
Milestones and new accomplishments will most likely be confirmed. They may choose to deserving gloat of their success and details on these items and present the plan for future objectives.
It certainly has a very positive feel going into September. Given the length of blackout we experienced, and the initiated rollout of recent news, I would suspect there is a well thought out barrage yet to come.