Unfortunately, Blood Moon Diana can't be a legendary...
...but this still leaves the possibility of her getting a legendary in the future, and I have, what I think is, the perfect suggestion for Riot to take on.
http://i.imgur.com/x0DrqGo.jpg
Dragonslayer Diana.
The Dragonslayer line is one of the very few lines Riot has yet to finish, or, release enough skins to where you can make a full team comp out of one skin line. Dragonslayer, in particular, is missing a mid laner, and, they are very AD heavy (Panth, J4, Vayne, and Braum). So, this team would benefit greatly off of having a brawly, AP, melee mid laner. Really, only 3 champs fit under that: Akali, Ekko, and, of course, Diana. For Ekko, I don't think this kind of thematic really suits him (his personality just doesn't fit), and one could argue that Akali could fit the thematic, but even though her gameplay fits the thematic, her lore thematic of being the "Fist of Shadow". She's meant to be sneaky, and stealthy.
But Diana tends to fit the thematic even better than the other 2. In essence, she's a hunter, hunting those that have lied to her and her people for centuries. She doesn't stick to the shadows, and she has an "I'll finish it" personality. If you ask me, Diana is actually the best candidate to finish off the Dragonslayer line, and considering how amazing the skins have been lately, you can be rest assured that this skin would be fricken EPIC!
So, what do you guys think?
P.S. I would credit the artist for the picture, but I can't find who it is. Sorry!
would all be much more fitting.