If and when future probe discovers considerable anisotropy at large scales, and that the clustering of masses are aligned to an arbitrary axis, what consequences does it have for the age of the universe (will it make it younger or older than it already is: current age is 13.799 billion years) and dark energy (will this give a bigger dark energy or smaller: current figures is about 70% of density of the universe)?
Can we still calculate the spacetime geometry using general relativity in such a new cosmological theory in which we have anisotropy? The FLRW metric, upon which our current Lambda model of cosmology is based, assumes that the Universe is homogeneous and isotropic. So if these assumptions fails can we still calculate a metric and how so would it differ.
See the few last paragraphs of the following article for background. http://sci.esa.int/planck/51551-simple-but-challenging-the-universe-according-to-planck/
If we assume an open, accelerating and anisotropic universe, how will the Hubble parameter, Hubble constant, dark energy parameter and equation of state change?