The ToA art is already accessible, this is just a different format for it. The random encounter tables are fine, but nothing exciting. The only random encounters I have liked are the ones from Out of the Abyss, where you can combine a random group of monsters with a terrain type - that produces interesting situations.
As for the Dragonborn names, it seems like a bit of a waste of space to me. A lot of them, particularly the family names, just seem to be a random set of letters shoved together. There are better name generators online.
However, I think when spells and table of contents comes out, that'll get people talking.