Although it's great we're getting more characters, it's a little bittersweet for me. I was mentally ready to consider Banjo the peak and hang it up after this Fighters Pass. There's no character left they could announce that could get me anywhere near as excited as K. Rool, Banjo & Kazooie, and Ridley.
I suppose one way to look at it is while the Fighters Pass had two inclusions I loved, and two I was indifferent to, I can hope for 3+ more characters that I like, even if I don't love them. Otherwise I might not be too invested, haha.
Either that or they introduce characters that make me want to play their games. That works too.