Welcome to two months ago.
The news about the new trilogy came out pretty simultaneous to the Disney acquisition - http://starwars.com/news/new-star-wa...o-acquire-lucasfilm-ltd/index.html
As for the subject matter, I doubt it'll be a prequel to the second trilogy (assuming you mean the prequel trilogy) - while that's a pretty wide open area to explore with only limited "official" Lucas titles poking around in the pre-"Phantom Menace" time frame (and in most cases set thousands of years before the events of the film trilogies i.e. Knights of the Old Republic, Knights of the Old Republic II
, and The Old Republic), I think it'll be post Episode VI
as I recall reading that this will "close out the Skywalker family saga." Perhaps I'm taking "close out" too literally, but that implies an ending to me rather than an intermediate story or a prequel.
South Carolina - too small to be its own country, too big to be a mental asylum.