Last week, The Next Web’s Drew Olanaoff predicted that a cryptic press invite from Facebook could have something to do with Open Graph, and today, according to AllThingsD, it would seem that he was right.

If you’ve seen posts in your Facebook news feed with what articles your friends are reading or what music they’re listening to, you’ve already seen a glimpse of what Open Graph Actions can do. On Wednesday, Facebook may be announcing more apps that will share your every Facebook Action with your friends – provided you’ve given them permission of course.

With the Facebook Timeline and Ticker, all part of Facebook’s Open Graph revamp already unveiled, Actions are the final Facebook frontier. It remains to be seen how they will be received. In its current state which we’ve already seen, sharing what articles you’ve read on any given site with a Facebook app, it can be a little unnerving. After all, each of these sites has a Facebook ‘Like’ or ‘Share’ button prominently featured on each page. For others, it may simply be an easy way to streamline their sharing process.

Until now, Facebook’s new Timeline has been opt-in, as has been the case with all of its features, but with Actions on their way, AllThingsD is also reporting that the new design will be unceremoniously thrust on all users who were reluctant to make the move themselves.

What kind of Actions can you expect? Let your imagination run wild. Verbs that were included in the original Open Graph guide published by Facebook include Run, Read and Cook, so if there’s anything you’re up to that you’ve wanted to automatically share with your friends, you’re probably going to be able to do that with Facebook. With this last cog in the machine, Facebook could very well become the ultimate life-logging service – but the question is – is that what Facebook users want?

Our own Drew Olanoff will be at the San Francisco event tomorrow at 5pm PT to let you know all of Facebook’s latest news as it happens.