Funnily enough, I was thinking that, strip away a few things, and BE would be awesome for Traveller. Say, use the BE rules plus the technology creation, then just use the setting nad maps from Traveller. Hell, both settings have nobles and a bureacracy and what not; they can’t not fit.
And frankly, the only thing I can see taking from BWG is Fight!, because if I were stretching the setting to include laser swords, well, it’d be more satisfying than Firefight.
That said, Firefight’s perfect for most battles in Trav, since it’s mostly guys gunning anyway. Only real wrinkle would be how to do stats for lower tech weapons (shotguns in space).