This is my idea of what setup I’m thinking of:
Intel - Core i7-8700K,
MSI - GeForce GTX 1060 6GB,
Asus - PRIME Z390-A,
Corsair - Vengeance LPX 16 GB DDR4-3200
It comes in roughly around £1200, any replacements needs to fit into this kind of budget.
Also I’d like to know what you think about the setup being future proof of wow gaming.