Morrowind remaster won't sell. It's one of those "hybrid" RPGs similar to KOTOR games - it has a gameplay elements of isometric RPGs: RNG combat, very few voiced dialogs - while looking like 3D action RPG. This just won't work for modern gamers. Its theoretical devs would need to either turn it into isometric CRPG or completely rework its gameplay to make modern action RPG out of it (as well as do it in the new engine to improve graphics and everything else). Both choices mean a complete remake, not remaster.
I don't know whether this leak means "true" remake of Oblivion, but that seems unlikely. Oblivion is relatively modern and you can definitely remaster it for new hardware without complete rebuilding.
Interesting news, but taking it with a grain of salt. I mean, I guess if they've run out of things to port Skyrim to it makes sense to remake or remaster Oblivion. If it is true then RIP to Skyblivion. Hard to see it getting released if they are doing a ground-up remake of Oblivion.
These leaks are never going to be worth it to me. The site just has to swear up and down that their source is correct and all we really see is a "source: trust me bro"