Well, hopefully the ETFs have a significant amount of demand from many institutional investors. If this is the case then they will need to buy more Bitcoin which will exponentially increase demand. An official ETF would cause a pump in price from speculators, then institutional investors will likely FOMO in which will cause the price to rise even more, then causing all the speculators to FOMO in because "it's happening!"... That would be the Biggest Bitcoin bubble. Eventually, it could get to a point where governments will start buying and holding Bitcoin as a form of reserve (similar to gold). Because of all this, I believe the first few official ETFs will initiate the next massive bull run in Bitcoin. Then the price will crash, and possibly, gradually rise over time as more and more money shifts to Bitcoin. But no more hype bubbles, only a gradual rise until it hits a point of stability...
Anyways, thats my 2 satoshis, that is a potential future I foresee.
I agree, I can't wait for the ETFs approval. We won't see another opportunity like it to make so much money. I hope it's not too far ahead in the future.