I think it will be full of all of those. Honestly, the only thing you will need to play the game is the Starter Set. Not the PHB, not the MM, not the DMG. But those of us who plan to buy the latter three books are probably wanting to play the Standard, rather than Basic game. For that a whole lot of us would like the magic items, random tables for treasure, events, and whatever other tables they throw in.
I've also found that some of the less crunchy materials can actually be quite useful. Whenever I sit down and read through the 3.5 DMG (for instance), I find that there is a lot of good campaign guidance in there, as well as "hidden crunch" that most of us never knew/forgot existed. (The combat effects of crowds of commoners--there's a rule for that!)