Sorry, you're asking in the wrong area - I'd move you over to the AIR Development forum but I don't seem to have rights to do that.
Ok, there it goes - AIR Help is concerned with the help output produced by RoboHelp that's in an AIRHelp format, not programming stuff using AIR.
There is no way to be certain, but AIR updates in labs tend to be every couple of weeks. I would expect there to be an update either today or maybe middle of next week.
AIR 27 hasn't been around very long, so it seems a little early for it to be released. You can use the beta for products that you're working on. I successfully submitted an update to Apple a couple of days ago that was using the 104 build of AIR 27.
27 Release is available on the download page.
Release notes not out yet
For future reference. The pattern has been major releases are released every 3 months and on the second Tuesday of that month.