In addition to haptic technology, smells and tastes will become digital archives in the future. You can imagine a smart office where the conference room has A.I-powered air fresheners that connect to a "flavor database", these aromas can be any type of perfume to psychologically influence employees as they wish.
These types of technology are being experimented in laboratories around the world, like virtual lemonade from Singapore which is actually water that changes your taste. With this, it is possible to imagine an intelligent thermal cup that one of these functions is to add a sweetener or virtual sugar to the drink through electrodes on the opening ring of the cup.
Another use for multisensory transmission technology is to catalog various smells and tastes so that they are recreated in future virtual reality experiences by neural implants and smart contact lenses. In a kind of neuronetwork, it may also be possible to share smells and tastes with other users, this could create great possibilities for the erotic products market.
What separates the real from the virtual is the complete absence of sensations, smells, and tastes, unless future tech solves this problem.