The confusion over Eight/half-human is pissing me off. However, I think it's workable. We know from The Doctor's Daughter that there is at least one not-quite-a-time-lord floating around (and the comment of 'She's too much like me' for the OMFGBBQ). I hate the fact that they're confusing the canon in this way, but I think the thing is that Donna/human!Ten were half'n'half in a different way. Or, more properly, they weren't half'n'half - they were part'n'part. Donna didn't become half-Time Lord, she got some Time Lord knowledge/mind/personality; and the other 'Doctor' was Ten, but fully human, or at least, much more so that half-human!Eight or Jenny, as they both have two hearts. They're more fully Time Lords than human!Ten or DoctorDonna.

And thus my fanon is reassured.

Not even gonna talk about the horribly-cheesey-(surely)-even-if-you-ship-them Rose/human!Ten thing.