First post, forgive me if I ramble a bit.
Does anyone else remember that, after the release of Ep.6: RotJ, people were clamoring to know about further SW films, which Lucas had hinted at from the get-go? And yet, ca. 1984-1993 - Lucas was cagey on the subject. There were no plans to produce more films. Discussions about sequels and prequels were dismissed for various reasons.
It took a decade or more before we were being teased toward an answer - at last, Lucas was ready to reveal what he had planned all along, but not before the original films were restored and redressed. Jabba enters Ep.4, and against any sense of smuggler reason, Greedo became merely a really bad shot instead of the idiot Rodian patsy we expected to be pa-crispa'd. No worries, though, because we got a glimpse of how CGI would change everything. And then, the prequels, in all their conflicted glory. No need for protracted comments on the films, but I loved them, they were a labor of love, and I never understood people claiming their childhoods were raped by Jar Jar. Needless to say, the prequels were not universally acclaimed. Lucas has said in response, why bother with more Star Wars?
And yet, we got The Clone Wars. And then, talk of a SW TV series called Underworld. (TOR has given us a glimpse of life in the SW underworld, with agents, Hutts, Twi'lek strippers and such.) The show is delayed, possibly never going to happen, but who knows? With HBO level production values, and iptv prospects, I think it could be huge. There were other rumors (which I personally saw, but can no longer find citations) that some sources saw an Old Republic (ie pre-prequel) film project under consideration. Perhaps that was just speculation based on TOR development? (Read somewhere that the devs have compared TOR to doing a TV series...?) Also saw suggestions of a Yoda based prequel.
So, to the belabored point. Am I really going out on a limb when I suggest that there is no question that Lucas will continue to draw from the Infinite Empire he created? He originally planned 9 films - I think we'll see them.