Yeah everyone is running with the same thing from the telegraph but nowhere is he quoted as saying it's a remaster. He says expansion and enhancement. Watching the trailer it doesn't indicate it's Miles story on top of the Spiderman game we got on PS4. It looks like a smaller standalone game using the assets from Spiderman. I'd be really surprised if it's Spiderman plus Miles story because a lot of people already own Spiderman on PS4 so why would they want to buy it again just for some extra content...
He doesn't use the word remaster but his exact words were:
"I guess you could call it an expansion and an enhancement to the previous game. There’s a substantial Miles Morales component – which is the expansion element – but also within the game as well there’s been major enhancements to the game and the game engine, obviously deploying some of the major PlayStation 5 technology and features."
I just see Remaster as improving the quality of something (in gaming. In music it's something very specific). I don't think it's wrong to call it a remaster as he says there's "enhancements to the game and engine".
You said "A remaster would be the Spiderman game on PS4 where you play as Peter Parker." and it looks like you do (admittedly it's not in black and white but I think that's why he calls the Miles stuff "a component"). But whatevs. We need more info. There's no strict definition of "remaster" for gaming, but aye, it's buffing up the original content
Cause I'm not getting it if I get a PS5 and the Miles stuff is like, a 4 hour mission pack with extra bells n whistles...
They should have made this clear on the feed last night to be honest. And half of those "PS5 footage" things were cutscenes!