Due to there already being bots present that even out the internal market with the external exchanges, I think we will always have an internal price close to the price seen 'out in the wild'. If the price out there goes up, more SBD and STEEM will be transferred out.

The true price rise is going to come from increased numbers of active accounts. The rewards pool is fixed, so as more and more people join it will get increasingly difficult to earn STEEM and get noticed. People will have to provide some serious quality, or buy their way in. This is where STEEM is going to hit the moon.