He IS a new character. He is just non-canon, like, let's say, Rex Ranger, but he is a character created by Hasbro specifically for collaboration.
We list Time Force Silver and various SPD Rangers on show pages, who, you know, is not exactly "canon" to the show's main universe, so I see no problem with listing BM Orange on a series page. He even got (Make-A-Wish) subtitle, so people would now, that he is not "main" series ranger.
Stop making pages so early - we don't have much, if any, info on these characters and some aren't 100% verified. Pages will be created and updated accordingly, rushing them means we have to protect the pages, verify sources against wiki policy, and so forth.
Not to mention you aren't an admin - we decide what is unnecessary and when something becomes unnecessary. You don't get to tell us what to do. Unless you want a loss of editing privileges, that is. If we haven't deleted something yet that you know we normally would, there is probably a reason for it.