We are all diehard SW fans, so our first instinct is either be really hyped (because we are dying for another great SW trilogy) or totally indifferent (because we are afraid of getting burned like the PT again).
I have tried to temper my expectations, yet still enjoy the hype. I think the first thing we all need to do is not expect the ST to be as great as the OT. The OT was lightning in a bottle, the characters, the story, the mythology, its a timeless classic. But just cause it isn't the OT, doesn't mean it still can't be great movies in their own right to satisfy us as fans.
The PT had the problem of having mostly new characters, whereas the ST will benefit with Han, Luke and Leia, Chewy, Millenium Falcon in Episode 7 transitioning us to the new characters.
The PT had the problem of we essentially knew how it ended and who was going to die, where the ST has the suspense the OT movies had because we really don't know where these movies are headed.
The PT had the problem of Lucas going overboard with CGI, whereas it looks like Disney and JJ Abrams are going old school. Even the director of Episodes 8 & 9 (his name escapes me) talked about in interviews about old school effects, the OOT, puppet Yoda, etc.
Finally the PT had the problem of HUGE expectations that all of us had in 1999. We are now alittle more wise in our age, and won't make that mistake again. In a sense, I think many of us here are so apathetic that it could work in the ST's advantage, as they could walk out of Episode 7 pleasantly suprised because they were expecting the worst.
Only time will tell...............