Unless they're a Lucina/Dark Pit/Dr.Mario-level clone and a character I don't personally care about, I'll get every single character thrown my way, no matter who it is. And knowing me, if they do release clones I'll probably go back on my word and get them anyways.
I'll probably get stages too if they release any.
I was looking forward to the Mii costumes, especially the Proto Man one, but that was when I thought they were gonna sell them as $1.15 for the whole pack, not $1.15 each, so no thanks. A bunch of costumes that do absolutely nothing from a gameplay perspective shouldn't be priced anywhere close to a completely new character with a unique moveset, the fact that it's priced even higher is just ridiculous. It's still not a lot of money, but no.