I've posted this before, but new design concepts are a dime a dozen. Boeing has often played with a blended wing/body concept - apparently there is a pretty good drag carrot there if you can make it work - but even Boeing says if it ever happens, it'll probably start out as a military aircraft because it'll cost so that to do it commercially first would be corporate suicide if it goes badly.
Forty plus years ago I took a class on aircraft design in college (fun class - our prof literally wrote the book). You had to design an aircraft from scratch - and your final grade was determined by the quality (and documentation) of your design. Several of the people in the class initially tried to do 'revolutionary' designs (one was a vertical takeoff 'flying car', another a hydrogen fueled aircraft carrying fuel in the wings) - only to quickly discover that there is a pretty good reason why successful aircraft designs tend to look more or less the same.