I hope with the phantom 4 they don't release 4 models. It takes up more retailer floor space, and they find it confusing(look at the Pro/4K price mistakes) and consumers find it confusing. DJI compete with them selves, and it has to increase the per unit costs when you produce 4 models. I'd rather see modular design that can be upgraded. Like they did with the inspire.
Instead of the 4K they should have sold an upgrade kit for the standard. Seems DJI doesn't want the phantom to be modular.