I'm not a huge Star Wars fan, but I think a lot of the nerd-culture reaction to this is pretty silly. In the first place, the last decade's contribution to the series degraded it enough that I don't see how a Disney interpretation--a company with an interest in protecting the integrity of the brand, by the way, considering they just paid $4B to acquire it--could really hurt it. I'll probably take some grief for this, but I'm just going to go ahead and say that it's naive for fans to think that Star Wars is somehow exceptional and has to remain static or untouched. Iconic franchises such as Batman and Superman and so on, or literary classics such as the works of Shakespeare or Dickens or take-your-pick are open to a range of reinterpretations across media. I mean, Episodes IV-VI are the product of a particular time, and it would be foolish to remake them as films--though not quite as stupid as something like colorizing It's a Wonderful Life, which is bad because it distorts the original product by altering it directly in a way which was not intended--but that's not even on the table right now, as far as I know. This is the addition of a new episode, and if that somehow affects your appreciation of past art, well... I don't know what to tell you.
And, also, one thousand cocktails to Kaba: that last Indiana Jones movie was atrociously bad, logically incoherent, and uh...kind of racist.
Look, man, I know a lot about whatever it is you're talking about.