This.
Plus, remember that a good chunk of that is for DHS/Star Wars construction, which was rejected earlier because it was too small in scope and ambition. Highly unlikely we would see money pared back given that context along with what
@PhotoDave219 said. Plus, look at DCA and how even during the recession money was kept flowing toward that project.
The more we hear in terms of rumblings and rumors, there does seem to be a bit of a "go big or go home" feeling about upcoming additions to WDW. I'd be surprised if many were suddenly yanked away because of what is happening half a world away. Given the high attendance in recent years, WDW is well positioned to reap large rewards from any new large-scale additions.