Title screen: I see a lot of roms get expanded as far as memory. Would that be a practical solution?
With the bunny girls, I was mostly thinking of 4 where they figure more prominently. I honestly never knew they were bunny girls until I played the Japanese version and said wow, this tradition makes sense now.
And yes, as far as the translation it does have a certain amount of support, as does anything that people have gotten used to. I played Dragon Warrior when I was 8 years old and loved the rendering at the time, but here was my take: It made me think of the series in a primarily western aesthetic style. As I played them, I expected a series about fearsome knights and dragons, epic battles, medieval scenarios, etc. Instead, I felt increasingly disappointed as I played through the games as they became more goofy and awkward as the series went on. These days Dragons Quest 3 and 4 are considered the finest rpgs of the NES era, but at that time they were met with increasingly diminished enthusiasm and I think that the aesthetic confusion was a primary factor. Granted that in those days, anime had not permeated the US in the way it has today and if the DQ series was presented to us in a manner more true to the Japanese aesthetic, we may have been even less enthusiastic when we received them.
This however is a different era. I'd like to believe that there are retro loving people who want faithful versions of these games without the faux western aspects--versions that will meld aesthetically with our later iterations. But to your last point, I agree that we don't need the actual Japanese versions. Most of the additions made to the US localizations besides the issues I outlined are of value, especially the intros to 2 and 3. While adding the multi directional sprites to 1 was overall a good thing, they are a little bit ugly though compared to the more elegantly drawn but forward facing DQ1j sprites.
Even after the arguments I've made for adding back the contemporary style, zaniness and adult humor of the Japanese releases, I'm sure many people will cling to their love of Ye Olde English renderings. Thats fine, we have them! I just think we deserve an alternative.