If we see Rashid, I think it means Mab's plan comes to full fruition in Battle Ground -- after the Accords members come together to defeat Ethniu and the fomor attack on Chicago, she rallies them to come to the Outer Gates to help defend reality. (Or at least to see first hand what Winter is facing on their behalf.)
That would be pretty epic, but it seems premature. (And possibly anticlimactic -- without Vanilla Mortals being included, the raw numbers that Accorded Nations other than Winter can bring to the battle will look like a drop in the bucket out there.)