Feature #7: Next-gen renderer (codename "Gloom")
We should consider the role of High Dynamic Range rendering in the next-gen renderer's lighting system.
It should not differ too much from vanilla lighting in that dark areas should remain sufficiently dark. The most benefit would be gained from handling of bright lighting: adapting to outdoor areas and having bloom for intense point light sources or other relatively bright spots.
In fact, adjusted properly this could entirely replace the old dynamic light "halos" (not lens flares, though).