I would prefer Irene, but before that someone said it to me I know that Rachel have a fanbase much more big, so her presence in the game it's really unlikely until Rachel is out from DoA... anyway I would be happy to see again playable the blonde fiend hunter, considered like she was replaced by Kasumi in NG3:RE
Yeah I'm a little upset about that but I can understand their reasoning,I'm happy to see that I'm not the only one that likes her though so I doubt she'll just be forgotten.