Meh. I don't think any event really has any impact on crypto. Long term happenings and situation like war, yes, economic troubles, yes, like in Venezuela. Or even political like Iran, North Korea, Syria, where bitcoiners are leading the underground charge for financial independence. The world cup is big, bigger than olympics, but hardly going to have any effect on crypto.
Maybe sport related especially football related coins will have a new rally. For example Footballcoin has so much potential but only a few players play that game. They don't have a decent market yet. They will have special games for World Cup. I'm expecting a rise for XFC price.
Yeah, I wasted my time with sports related coins in the past. Too small value, and not global enough.