I personally think it is a mistake to try and create a game to similar to Wow. It might look like a good idea, as WoW is the most successful competitor out there. But players will notice the great amount of similarities and will therefore expect the same level of quality of life features. If the basic concepts (combat system, trinity, dungeons/raids/battlegrounds...) are the same as WoWs, players will be very likely to compare everything to the best WoW-style MMO: WoW. And then the lack of 7+ years of polish will show, players will miss all the little things and complain.
I know why most gaming companies stick to the WoW formula, as it is the same reason why most games these days have a number at the end...
But still, I believe a bit more innovation, new concepts and not as much a reliance on traditional features would create more interesting alternatives. Gw2 and Tera are on a good way and I am really glad, that some bis studios had the courage to try something new.