Ms. Puff and Pearl should return, and that Mr. Krabs and Plankton should have smaller roles?
I dunno. Like, I haven't seen Ms. Puff and Pearl very often recently, and I really liked those two characters. They're consistently entertaining.
About the other two: I think they simply appear far too much. Just about every episode focuses on either one of them, and I'm sick of seeing Plankton fail over and over again, and seeing Mr. Krabs yell about money or something. It just gets tiring seeing the same old stuff over and over again, so I think a break from these two might do some good.
Uh, dicuss?