They shouldn't remaster it then but instead do a remake of 1, 2 and 3 using their newest RTS engine. Its almost seems as if Blizzard is afraid that World of Warcraft players notice that its incorrect to call old Warcraft games as WoW and that its lacking a lot of mechanics from the classic games...
WoW is a cool game but they shouldn't focuse only on that with this franchise, even more when its engine is ancient and more and more interesting MMO are appearing on the market.