I agree with many of e-eye's points. I would include a couple of additional ones to the list:
-Word of Wisdom clarifications
-more leadership opportunities for women in the different areas of the church
The reason I think that there might be some updates to the way that the Word of Wisdom is defined is that it was never originally intended to be elevated to 'commandment' level, and wasn't lived as such until the early-mid 20th century. Also, there is too much loose interpretation on what an appropriate vs. inappropriate 'hot drink' means. Around the world, a lot of different hot drinks besides coffee and tea are consumed (kava, matte, etc) and they aren't expressly forbidden by the church. However, often members in those parts of the world use that as a way of defining a more robust level of faithfulness (those who don't drink kava vs. those who do), and it causes a lot of judgment, misconceptions, etc. After all, we have other prophetic counsel (staying out of debt, food storage, etc), that aren't given the same 'commandment/temple recommend question' status. I can just see that the modern day interpretation of the Word of Wisdom is steeped in a lot of the 'Utah' church tradition and not really in what it was originally intended to be. Anyway, my prediction is that in the globalization and de-centralization of the church that is happening now under President Nelson's leadership, I can see this Word of Wisdom clarification/update as being one of the changes. My two cents...