MinnMax is doing a game club discussion for Rebirth with input from their community (like they did for Remake): The Deepest Dive. I think it's very entertaining. It's kind of lame though that they don't want to spoil the original FF7, which makes it harder to talk about the game. Bad decision in...
I would also add the parkour animations, or lack thereof, to the list of flaws. Especially jumping off cliffs looks really janky. I've seen direct comparisons to FFXV and it's night and day. I hope they can make them look better for the final product.
But yeah, everything else about Rebirth...
That's a stretch. There's no reason why Aerith's line from the trailer HAS to be at the Gold Saucer date.
However, while I also believe more than just Fort Condor and Wutai will get moved to the third game, I can't imagine they would move Gold Saucer. That'd be outrageous.