That said - I was confused when they destroyed it in TFA. I assumed it would be the new threat for the new trilogy. What's the big threat going to be in Episodes 8 and 9 ?
Just Snoke ?
Maybe more personal stakes? I don't know, could work. Or maybe Force Storms as described in the expanded universe or something like that. Equally, if not more, dangerous than the death star. I don't know.
I loved the characters, but most of them really do have original trilogy counterparts. Rey is essentially a combination of the most famous parts of Luke, Leia and Han. Poor girl living on a desert planet with hopes of becoming more? Luke. Tough sassy girl that will carry out her mission at all costs? Leia. Cocky pilot who comes in to save the day? Han. What made her character work is that Daisey was essentially a walking figure of charisma. And god damn was she charismatic.
I think at that point you've got a new character. They're all going to share characteristics on some level, and personality-wise I don't think Rey resembles any of the examples you gave. I just don't think any of the original ANH crew would act as Rey did if put in her shoes. Broadly speaking maybe they'd do similar things, but the dialogue or just the way she speaks just wouldn't fit Luke or Leia or Han.
Poe was essentially an updated Han solo.
I don't think so. Poe is an optimistic, generally positive, and all around nice person, everything Han wasn't when we first met him, and still really wasn't by the end. Just because they both have a bit of sass (although the sass is a lot stronger with Han) and know how to fly a spaceship doesn't really make them counterparts. I bet there's
a lot of sassy pilots in the galaxy.
Yoda and Maz have similar roles in the story (I guess?), and they're both small, but they're quite different as characters.