If I were you OP, I would not expect much from ETFs since they won't impact the market that much because:
only Winklevoss ETF was the physical one. Rest all were synthetic.
unless there will be another physical ETF in the future(that will be approved by SEC). Either way, the continuous stream of ETFs for bitcoin is a big help in speeding up the growth of its adoption rate even if they are not getting approved(since it greatly helps in spreading the existence of bitcoin through news).