With the Knights of Ren apparently actual characters in this, I assume that the TIE attacking Rey is piloted by such a Knight since it’s quite clearly not Kylo’s design.
It’s just that a lot of people are assuming it’s Kylo in that TIE, which I don’t see at all.
JEDIT: As for bringing Palpatine back in some capacity, I don’t hate it, and have argued in the past that it makes a lot of sense to have the big bad from the first six episodes cast a shadow long enough to cover the entire saga.
If you match the interior shot of the cockpit in the trailer with the cockpit image of Kylo Ren that was revealed at the panel, you’ll see how they match up.
Maybe Kylo’s ship was another one-off prototype like Grandpa’s. and it was lost at the end of TLJ? Now that I think of it, I’m a bit dissappointed we never saw Vader in ship to ship combat in the movies again after Episode IV.