The above mentioned medals were finally awarded:
Devil's Brigade receive Congressional Medal
Coincidentally, I'm in the middle of reading the excellent--if dated--history of the First Special Services Force:
The Devil's Brigade by Adleman and Walton. My understanding is that the FSSF was disbanded after WW II, but laid the foundation for the development of USA Special Forces, their colors being transferred to the 7th Special Forces group in 1960.