Do Suhr and Tom Anderson have patents on this wood combo? It seems like all the high-end stuff are either all American basswood or mahogany/maple. I've perused both the American and Japanese website and found no example of this combination (no, the Premiums do not count; those are just veneer).
Has Ibanez ever ventured into this configuration and found that it wasn't profitable or are they loth to try it?
It's kind of an unusual combination - it's one, as you note, that Suhr and Anderson like quite a lot (and for good reason - it's very even and balanced, but with better attack than basswood alone), but I think it's one thats probably logistically challenging for Ibanez.
Consider that 95% or so (I made that up, but it feels right) of their guitars are basswood. Basswood has, wrongly, but also in part due to the huge number of Japanese import Ibanez guitars in the 80s that were well made but often cheaper than a Strat or a Les Paul, a reputation for being a "cheap" tonewood, so when people want a "high end" Ibanez, they're looking for a different tonewood to differentiate itself from their normal RGs and the like. So, you'll see a lot of maple/mahogany guitars, and occasionally an alder or an ash, but your typical Ibanez player looks at "maple top, basswood body" as simply a RG playing dress-up, rather than a legitimate tonal choice. I remember when I first heard Anderson and Suhr advocated that combo I thought it was weird, too. Now of course I know better, but I'm also not really the Ibanez target audience these days, anyway.
I think it's just a matter of buyer preconceptions, really.