I agree that we're missing a strip. Where was Bonnie's reveal? If you're going to introduce a character who is all gimmick, don't they need their own "Heeere's Bonnie!" moment? Scott is usually so good at writing conversations that it feels very odd not have had a "Hey guys, meet Bonnie!" moment.
I really wonder if we got this one a day early.
Update: A clarification: When I said "Where was Bonnie's reveal" I didn't mean "why haven't we seen her face yet?", I meant, "Where was the moment that this brand new character (whose gimmick is that we never see her face) is introduced?" This is a last-panel type event, and to just insert her without any fanfare is odd.