I reckon if anybody comes out and says they know what's going to happen in the forseeable future they're having you on.
Certainly none of the political elite knew what the result was going to be and seem amazed and shocked.
I can't imagine the likes of the BA or IAG board having planned for a Brexit, and having just finished Taleb's book Black Swan, can see it is the unforeseen consequences of Brexit that are likely to scupper future plans, whether for expansion at LHR or BA.
That coupled with the fact that the second raters are about to take charge of the UK economy doesn't bode well for the future.