I'd love that! To see everything from someone elses perspective but mares, that would be cool!
But it still looks kinda weird, but I'd like it to happen. Maybe not as Mane 7, but maybe to let him be in the show like every second episode or so? I think this would just benefit the show on so many different levels, especially if he is a badass
But I were thinking, maybe some haters (especially parents) would be more accepting if there was a male character who played a bigger role? Think about it, most dislike it because it is girly, but if an awesome male character were added... BAM!