the Jester
Legend
For me, the big thing I'd want to see changed in spell entries is how they're organized. Alphabetical by spell name if fine for looking up a specific spell when you know nothing about it but it's name.
But, when it comes to familiarizing yourself with what your character can /do/, having them arranged by class & level as they were in AD&D, is far more convenient and helpful. Even if it does mean re-printing a non-unique spell here or there (or referencing were to find it, if space is at that much of a premium).
You know, in the run up to 3e, when they announced that spells would be organized in one big alphabetical list, I felt this way. But after seeing the arrangement system, I completely flipped to endorsing it, as long as they put that one line description of each spell in the lists by class and level... which it doesn't look like they're doing, at least from Basic and the Starter Set.
So now I'm on the fence, but I think I still lean toward the alphabetical list.