This post mostly confirms that SV will still be melee.
“With very few exceptions, nothing will change in the class tree when changing your specialization. One such exception might be Counter Shot, which will change to Muzzle if you choose Survival. They are both the interrupt button, but are themed differently and have different cooldowns. Keeping that distinction is important.”
It’s actually an implicit acknowledgement that Survival is a very different approach to spec design v.s. everything else; most specs add on top of the class foundation while Survival significantly changes/erodes it.