Well I have already shown that users such as @midlet have decided to lease Steem Power ahead of HF21 to increase their curation ability, there are many other users I have noticed doing this. I think the price will remain the same initially and gradually increase, because remember curation is earned 100% in SP as opposed to author rewards which are 50% liquid, so it means less liquid Steem will hit the market initially, 25% less or so, it should decrease selling pressure. But again if bitcoin continues to rise, the public may favour bitcoin and Steem price could go down despite how hard we try to make Steem great. Note: This is not investment advice and merely an opinion.