AB Inbev producing a good tasting helles lager or a CAP as suggested by JackHorzempa certainly seems like a natural fit. Branding-wise it probably works better for an old lager brewery with a German heritage to brew German lager beer styles than "anglo-saxon" ales (albeit with an American "craft/y twist"). One would think that a tasty pale lager or CAP from a single big brewer could easily capture one million barrels in sales, if it was done right and was a credible product tastewise. Quite a few craft breweries seem to be moving in on pilsner-brewing, but the CAP-style is one where AB Inbev could have a first-mover advantage of sorts which would help against perceptions that it's jumping on a bandwaggon. They could emphasize the American heritage of the style in the marketing (whilst backing it up with flavor) in a way which would fit nicely into the larger Budweiser brand family. It would probably provide ample opportunity for story telling about the German immigrants coming to America and bringing lager beer with them etc., giving the brand and beer the background which seems to be important for the big breweries but which can also be hard to accomplish (with big name brands suffering from commoditization and indifference from consumers). I think such a product would need to state its points of differentiation on the label, back or front, giving specs such as wort strenght, IBUs and malt/adjunct/hop varieties used, to further bring home the point to the consumer that this is something different, it's not Budweiser with a different label. A pilsner brewed with pilsner malt, corn, German/Continental hop varieties which are named and with an IBU rating around 30 or slightly north of that (I'm guessing there are examples of early 20th century/late 19th century American pilsners which would have had a bitterness close to that). That's a description for a beer I'd try without hesitation.