It's already there and being ignored by Oculus. Has now been confirmed by support to somebody in need that no more are being produced. Can but hope a third party picks up the slack. Utterly disgusted by this myself, very underhand.
What company keeps making parts for products they no longer produce? Unless those parts are been used in another product, it has always been third parties who have filled those voids. The problem here is that there aren't any third parties making cables for the Rift because it's probably not worthwhile.