I disagree. This is because they would need to implement a couple dozen new 3rd level spells (most of which would be game changing, like fly), increase the damage of cantrips, and incorporate dozens of new class features (when some classes don't even have some of their features implemented yet, like rogue). And this does not even begin to take into account balancing issues.
Level 5 is a major increase in power for most classes (especially spell casters).
They're already going to be doing that.... you know the game is going to go beyond level 5 when it comes out right?
