https://www.reddit.com/r/wow/comment...agon_isles_to/
https://www.reddit.com/r/wow/comment...agon_isles_vs/
Let's look at these comparisons. Dragon Isles are bigger than Northrend, Kul Tiras should be about the size of Gilneas but it is here about half of the size of the Dragonisles. All of the current Northers EK would be less than the Dragon Isles, while loosing its zones uniqueness. When i hear of a world revamp i expect each classic zone to be the size of a new zone. Eversong Woods should be as big as Drustvar, Ghostlands should be as big as Nazmir, the Eastern plaguelands should be as big as the azure span. And so on.
I don't believe they will keep the scale as small, and just make another cata overhaul, but a true remake. And we saw that even back in WoD when they remade outland into draenor that they made it bigger. Here is a post from 10 years ago
https://www.mmo-champion.com/threads...d-and-compared
Draenor 4:20 by 3:45
Outland 3.35 by 3:30
It is very likely and resonable to think they will upscale the classic zone to fit the size of modern zones, and not only by simply merging them.