My plan was to withdraw from Star Wars news items, regardless of "spoiler" status, once the marketing wave hits. I'm going ahead and doing this now, since some of these things are starting to leak. I do plan on seeing the trailer, but avoiding any breakdowns or examinations of it by others. Starting November 1st, which is a completely arbitrary date, I will go under completely and withdraw from any Star Wars related sites, including here. I will probably stay subscribed to certain threads, though, especially ones I've started.
That being said, I really am glad that I still don't know the plot of the new movie. With the prequels, there wasn't really much to get antsy about. Take Rey, for example. I don't know who she is in relation to the other characters. I can speculate, but I think it's great that I don't know for sure. I'd like to keep it that way, though it'd be very difficult to restrain myself from the trailer, which will be an experience all its own. I will just have to trust that JJ and company know what they're doing.
Also, in an apparent contradiction, I do plan on reading Aftermath and Shattered Empire during my Nov-Dec blackout. Even if it gives me some hints about the story, it'll just be how I go into it.