My wish list is:
1. Dictionary support
2. Improvements I mentioned above to the file browser and the recent book list.
3. Sleep mode
I do not search in fiction books and I do not use light (I use the clip-on light Ozeri Kandle Flex on Aura HD instead, if I need light, because with a clip-on light the screen still looks like a page of a printed book and not like an LCD screen), so I don't care about these features.
But I grew accustomed to using encyclopedic dictionaries on T2. Nothing wrong with getting educated while reading
Also, on T2 I am using all the time the direct shortcut from the recent book list to the folder of a chosen book - I miss it on Aura.
Also, I never exit CR, so switching to the sleep mode is sort of important too.