  We give here an overview of recent developments in high energy physics and
cosmology and their interconnections that relate to unification, and discuss
prospects for the future. Thus there are currently three empirical data that
point to supersymmetry as an underlying symmetry of particle physics: the
unification of gauge couplings within supersymmetry, the fact that nature
respects the supersymmetry prediction that the Higgs boson mass lie below 130
GeV, and vacuum stability up to the Planck scale with a Higgs boson mass at
$\sim 125$ GeV while the standard model does not do that. Coupled with the fact
that supersymmetry solves the big hierarchy problem related to the quadratic
divergence to the Higgs boson mass square along with the fact that there is no
alternative paradigm that allows us to extrapolate physics from the electroweak
scale to the grand unification scale consistent with experiment, supersymmetry
remains a compelling framework for new physics beyond the standard model. The
large loop correction to the Higgs boson mass in supersymmetry to lift the tree
mass to the experimentally observable value, indicates a larger value of the
scale of weak scale supersymmetry, making the observation of sparticles more
challenging but still within reach at the LHC for the lightest ones. Recent
analyses show that a high energy LHC (HE-LHC) operating at 27 TeV running at
its optimal luminosity of $2.5 \times 10^{35}$ cm$^{-2}$s$^{-1}$ can reduce the
discovery period by several years relative to HL-LHC and significantly extend
the reach in parameter space of models. In the coming years several experiments
related to neutrino physics, searches for supersymmetry, on dark matter and
dark energy will have direct impact on the unification frontier.
