So, are all those 3 or 4 Awakenings companions supposed to be turned into Grey Wardens? If yes, is there a possibility for all of them to die during the Joining?
What's a bit dubious about this "rebuilding the Order" plotline is that the game does a very bad job at presenting any compelling reason for the existence of Grey Wardens... there's only the startling revelation of Riordan 5 minutes before the game ends. But before that, none of your companions even gets tainted despite getting splattered by Darkspawn blood many times, not to mention trudging through the Deep Roads & Deep Trenches.
It would've been more consistent if your companions would all get tainted and be forced to go through the Joining... and their survival depending on their disposition towards the PC.
As it is now, if the only use for Grey Wardens seems to be putting a sword into the head of an Archdemon... why not simply distribute Archdemon blood all over Thedas and when a new Archdemon rises up, put some random people through the Joining to stake Archie if they survive?