for sure, anything is possible and with an earnings downtick and housing in correction unlike most of the last 4 years, i would be surprised if 100+ oil (and potentially in the 200's based on Hormuz outcome) didn't have at least moderate recessionary influence. as the ING risk doc on the subject also pointed out, Iraq was priced in advance whereas Iran plans are being largely denied at this point
using tactical nukes, or an attack inside israel would also likely rock the boat
you also have the fact that the iraq war was accompanied with an aggressive dollar deval, but at this point they can't play that card without nudging the dollar below 30+ year lows