Allow look-ahead while panning vertically during playback
Currently MuseScore repositions the view only the moment the cursor falls outside the view area. This means that you, as a player, have no score look-ahead if you're at the "bottom" system of the current viewport.
If MuseScore would reposition the view so you always at least see the current + next system if possible you'll end up with more total score repositioning, but should get a "smoother" play-along experience as the human player.
This would be useful Single Page View as well as in normal Page View if "Scroll Vertically" is enabled.