Rayna that’s not derailing at all.
I envisage maintenance much like Bootcamp light with occasional, mindful cheats really. Like I kind of do now. 
But I mean it about the mindful bit. I love bagels w/cream cheese and streaky bacon for breakfast but I can’t plan to have that twice a week in maintenance. Or even once a week really.
I see it more as a stage where once a week I have a meal that’s carbed up, so maybe the bagel one week, the next week a couple burritos or tacos as a meal (another favourite), the next week maybe a burger, but to be honest I’ve become so accustomed to bunless that it would have to be a pretty special sloppy gourmet burger to tempt me.
As for cake, a friend gave me a slice of her key lime pie the other day, specifically for me to taste because of my American background. Like, literally packed it and brought it over and asked me for my opinion as it was her first attempt and she wasn’t sure. I was happy to have a couple bites (and it was lush, she’s a great cake and pie maker), and I let the kids have the rest. I wasn’t worried even though it was a cheat because I honestly haven’t had a piece of cake/pudding for at least 7 months or so? Can’t remember but I think it was creme brûlée on summer holidays. Maybe I’m wrong. But I knew it wouldn’t trigger any cravings for me.
Point is I don’t see maintenance differently, in the sense I won’t be planning to reincorporate other carbs into my daily diet. I’d rather snack on olives or cheese than crisps. I’d rather have lasagne with courgettes or aubergines, it tastes nicer.
There’s just not that much that I miss.