We do not need any big announcements for bitcoin price raise. By it's nature it will double every four years. If we spread the bitcoin to every people then the price would hit the sky then moon. But, when we spread bitcoin, some new services would arrive that service announcement would be a big boost for bitcoin price like this OP said....
It won't increase in price every 4 years (halving) without any positive incentives for the future. That is a big mistake to believe like this imo.
We need to progress the network and announcements with solid arguments, incentives to the people outside of the Bitcoin ecosystem why they should choose to use Bitcoin.Lots of work and solving issues have to be done for that.
Without bees no honey. And without honey no incentives for the consumers.