I think they need to roll out what they have talked about for close to a year when we can see where things stand.
Communities is going to be a big thing for the content angle since there will be smaller grouping who are going to upvote things. As people assemble around interest, we should see the quality in those areas go up. If not, I imagine the person will not get much support from those in that group.
Bots are a large reason for what you describe and they arent going anywhere. However, over time, as the masses start to join, the big accounts are going to lose power as a percentage of the whole. Hence we will see things spread out even more (actually this is already happening).
Hard Fork, SMTs, and communities and lets see where we stand.