Right, and the Ranger class that we're talking about is not yet defined. If we have a core Ranger class that is able to tap into external powers then we can explain why they would use Sylvanas-level Necromancy, Azshara-level Storm/Sea/Arcane powers and Elune-level Moon/Light powers all in one class. The shift in power is simply a specialization.
WoW doesn't need anything, so this is pointless to ask. For that matter, we don't need a Tinker either. The game has come this far without it and is still thriving strong.why do we need the new class?
Why would the gameplay mechanics of a different class be exactly the same as one that is existing? It's kind of pointless question here.Okay, but how exactly would this be any different than how a Hunter played while utilizing Black Arrow? In that case you had a physical ranged class that could use Necromancy along with various other magical arrow abilities like Arcane and Chimera shot, and it felt no different than the typical Hunter class. In short, I'm simply not seeing how this would play any different than the existing Hunter class.
A new class, no matter what it is, would have new gameplay. A Death Knight isn't just a different flavour of Paladin, a Monk isn't just a different flavour of Shaman. Why are we suddenly assuming a new class would play like a Hunter? Just because it uses a Bow?
The way I see it, it's as different as comparing Rogues to Shamans. Just because they dual wield doesn't mean their mechanics would be the same. They have very different specs, they have very different motivations and backgrounds, they have very different gameplay. A Hunter doesn't tap into the magical powers of external forces, a Hunter doesn't cast Arcane or Divine spells. They are survivalists and beast tamers and expert sharpshooters. The Ranger class would be built around the use of magic, with the Bow simply being their weapon of choice through which they channel their magical energies. Priestess of the Moon and Sea Witches weren't mere hunters, and they don't even fit that classification. They were magic users that simply chose to use a bow as a means of attack. Sylvanas, with her extensive use of magic, has far surpassed being a mere hunter. These identities have outgrown the Hunter, and unless we're talking about changing the Hunter entirely to be a Magic-user type class, it won't be able to satisfy any of these identities properly.
The POTM spec be built as a psuedo healer spec, perhaps similar to old Fistweaving or Discipline. Sea/Storm spec could be a caster-heavy spec that uses bow auto attacks to generate spellcasting resource. The core theme of the Ranger is the use of magical abilities supported by the use of a Bow, as the POTM and Sea Witch were; and how Sylvanas is shown now through her heavy use of magical power. Look at her fight with Bolvar where her arrows produced magical chains; that's something that doesn't fit a Hunter's kit or identity. It would fit perfectly with a core Bow user class that has strong magical aptitude and an affinity for tapping into greater sources of magical power.