Some days ago it appeared in the virtual skies: the Boeing BWB (Boeing 797

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You can download it from Simviation.com You can see it is not as large as expected (at least me), it is just a little bit larger than the B747 and the A380. It will be designed to be able to be operated on airports where the A380 can. Capacity is roughly 1000 pax, and flies at M0.88 - M0.9 All in all, a little bit much better in every aspects than any other current airliner.
You can see she needs only 3 of the currently largest engines. The whole aircraft profile resembles the thick supercritical wing profile. The FS model is very detailed, but very fictious in many details, as the airplane exists only in a scaled model currently. Perhaps it will give some insppirations to Boeing engineers

The shape does not provide enough vertical surfaces for airline advertisement... maybe it also means the start of spreading the available colors, like in Formula-1 ?