First off, let's not automatically conclude that the pump in price was due to the Iran/US fiasco. With that said, I don't think Trump's "Iran War talk" simply fades. It's not just a "talk" now, as far as I know a war is pretty much confirmed(correct me if I'm wrong). I know friends in the US that are now going to be deployed in Iran, with saying their hopefully not last goodbyes to their respective families.
With that said, let's not hope for the worst just for BTC's price to rise. Don't be that kind of person.
This whole situation between USA-Iran-Iraq can have an impact on the world markets, but not as much as the media overdo it for the sake of creating sensationalist headlines. They are
pumping war story because this is hot news which makes them a good profit.
The facts on the ground are actually a lot different when it comes to the military option, which means that the US does not have enough human resources in the Middle East to invade Iran, and in the same time Iran can reach almost all USA bases in Middle East with its long-range missiles. For that reason USA is sending six B-52 bombers to US military base Diego Garcia (Indian Ocean island) which is beyond the reach of the Iranian missile system.
I think Iran will not provoke a real open war in which they have no realistic chance, but retaliation for the killed general will come in the form of some minor attacks on US targets or their allies.
Counting dead US troops in an election year would be one of the biggest nonsense Trump has done, and I think this whole situation is just a show of power that says
"We are USA, we are the strongest and we can do anything we want"