Expanded Universe repeating history

I have been thinking about how the authors are killing a lot of the more popular characters off more and more often in Star Wars. Chewbacca, Grand Admiral Thrawn (though Timothy Zahn didn’t know he was going to become a favorite), Anakin Solo, Mara Jade Skywalker, and I’m sure there are more that I’m not thinking about. I believe that once they kill off the some more, mostly Luke Skywalker, Han Solo, and Leia Organa Solo, they will have to stop going forward into the series. They will have to go back and work from there. Though I might be wrong because the Solo children (Jacen and Jaina) and the Skywalker boy (Ben) might have cought the younger generation. They might want to continue reading about what happened to them, but so many who  have grown up with Star Wars will most likely stop reading once at least when those three are gone. I might continue reading to see where they go, but it seems like they are redoing the movies (prequels). One of the Skywalkers is turning to the Dark Side trying to save something. In this case, Jacen turned to save the galaxy from war. Instead, he has just made it worse!