With no more movies coming out, I think this is natural that the series is going downhill. There are still Star Wars comics, books, etc coming out. but most of them are prequel era or the new jedi order era, which isn't my cup of tea. But the good news is that Star Wars seems to be doing better than Star Trek. That francise seems to be much closer to death.
And no, I didn't mean anything as a jab at Trek. I like Trek as well, at least some of it (original series and NG) but with the failure of "Enterprise", the series has very quickly died. Much faster than Star Wars has done.