Not only “may be dramatically different” but definitely will, considering that we will have no genitals.
I agree. While genetalia, hair, feathers*, fins**, and so on pertain to external mortal features, there are also internal physical features designed and approved for different planertary mortal habitats which forevermore will never be needed. For example the lower digestive system. In the morontia there will not be residual waste.
47:4.6 Though you have morontia bodies, you continue, through all seven of these worlds, to eat, drink, and rest. You partake of the morontia order of food, a kingdom of living energy unknown on the material worlds. Both food and water are fully utilized in the morontia body; there is no residual waste. Pause to consider: Mansonia number one is a very material sphere, presenting the early beginnings of the morontia regime. You are still a near human and not far removed from the limited viewpoints of mortal life, but each world discloses definite progress. From sphere to sphere you grow less material, more intellectual, and slightly more spiritual. The spiritual progress is greatest on the last three of these seven progressive worlds.
49:6.1 All of the differing physical types and planetary series of mortals alike enjoy the ministry of Thought Adjusters, guardian angels, and the various orders of the messenger hosts of the Infinite Spirit. All alike are liberated from the bonds of flesh by the emancipation of natural death, and all alike go thence to the morontia worlds of spiritual evolution and mind progress.
*feathers: A reader on a different topic brought up mansonia passenger birds and thought they had feathers.
**Fins: I’m speculating about fins. There are many planetary physical types (49:2.0) in our system, in particular: “49:2.18 In Satania, of the elemental types, seven per cent are water, ten per cent air, seventy per cent land, and thirteen per cent combined land-and-air types. But these modifications of early intelligent creatures are neither human fishes nor human birds. They are of the human and prehuman types, neither superfishes nor glorified birds but distinctly mortal.”