If the order of the questions that anaconda asks were rearranged, such that the questions related to package selection are asked first (before network configuration questions and so on), installation of packages could begin while the rest of the questions are being asked. It could be quite a timesaver. For extra points, a bit of amusement (like a game of solitaire) could be offered while the rest of the installation is carried out. Indeed, this idea is stolen from Lycoris' installer.
We're instead moving more of the questions to not even have to be asked at all in an effort so simplify the installer. You'll notice in FC5 test3 that there is less asked and pretty much all of it has to be answered prior to package installation