Or a combination of mammal and octopus eye so that you can change the lens focal length and the shape of the eyeball and have telescopic vision.
These last two kind of things are what one should
expect if ID were involved in species change btw.
Isn't this just pure speculation?
I don't think you can predict what sort of direction a design is going to go in (and as I regularly point out the IDers aren't even looking at designs, they are looking at implementations - which isn't quite the same thing) unless you know what the requirements or goals of the design are.
Since the IDers want to leave the designer(s) hiding behind the curtains we don't know what the goals of the 'eye project' were (are?). Perhaps the contract with the Magaratheans led to the following sub-section in a Functional Specification:
Requirement: The third most intelligent species on the planet must be forced to speculate on why some of their physical organs are so piss-poor compared to their equivalents on other, less intellectually advanced species.
Humans will be equipped with a relatively poorly designed eye (see Specification
Optical Systems In The Human for full details of the human eye).
The eye used for comparison will be that of the octopus which, as described in in the relevant sections of Specification
Optical Systems In The Octopus, will be implemented without some of the deliberate design flaws placed in the human eye.
The default neural pathways built into the human brain must be checked to ensure that they will have enough curiosity to make the required comparison between their eye and that of the octopus.
Except of course there would be a lot more bullet items, cross references to other specs and so on
I wish I didn't know now what I didn't know then