It will be one of the biggest issues to find big investors in order to really get STEEM going in even further heights. Exactly like @alexvan mentioned in his recent post..
My big hope are the SMTs. If an app like APPICS goes viral it might draw a lots of attention to steemit itsself.
Another way probably would be drawing the attetion of the gaming community from youtube/twitch to dtube & co.. The more people get convinced that these are better solutions, the better!
Let's hope the best :-)