There's no soda board so here goes.
I want a new class of sodas.
I'm looking at Jamaicans like Stewart's Ginger Beer and Blenheim (hot and not-so-hot), and that's where I want to go with this. Blenheim will make your throat close off. Stewart's is like drinking glass needles. I think the recipe is like... 1 gallon of water, 1 pound of ginger, some sugar? This isn't a can of Canada Dry we're talking about here.
That's what I want. I want some strong, deep, rich colas; some dark, heady root beers; something akin to Dr Pepper with a deeper, warmer flavor of molasses and clove; rich cream sodas. Less sugar, more flavor. Something non-alcoholic with the class of a good beer or martini. Ostensibly, something more of a chilled, fizzy herbal tea.
More or less carbonation--for bitter or bitter-offset things I could see using much more carbonation as a preservative method, likewise for citrusy you'd use lemon juice or citric/ascorbic acid as a preservative. Cream sodas might take less carbonation; spicy ginger ales more or less, that style exists and has real variation; root beer can go either way too.
I need to build a dedicated kegging system just for this. I would love to make something like Blenheim that'll make your testicles descend, at least.