I dont know what unit in 41 Bgd your in, but I know in my unit we have known about the TF for quite some time. We already have guys loaded into CFTPO posn's ready to deploy. In addition we have guys already on PCF course, and more departing sometime in Jan.
I think there is really no "lead" reserve brigade as it is such a large commitment (someone like Morpheus, Recce, or Para Cowboy would know MUCH more about this than me). From my understanding each brigade is providing certain things augmentees, D&S, etc. I THINK that each brigade is supposed to provide a D&S Pl, with 1 going to KAF, 1 going to PRT, 1 doing FoPo (I do not know this for sure, it is my impression/what I have been heard/ told but uncomfirmed... grain of salt needed).