That’s actually a better question than you think. The answer is “we don’t know”. The light gathering power will be greater than any current instrument. The spa

That’s actually a better question than you think. The answer is “we don’t know”. The light gathering power will be greater than any current instrument. The spatial resolution will be better than any current non-interferometric system. The adaptive optics are in a new league, and the mirror coatings will allow a very broad spectrum to be sensed. But what will we discover? We honestly don’t know. It’s been a bit of a bone of contention as many in science would argue that you should define your goals and then devise the experiment and apparatus - but cosmology and astronomy are a bit different, as most of the huge discoveries have been utterly unexpected, and have “just happened” as a result of better telescopes and observations, from moons of other planets to heliocentricism to other galaxies to red shift to the Big Bang to quasars and pulsars - we didn’t expect any of these things, we just found them. So that’s the improvement - hopefully new science, new discoveries.