There won't be a court martial. They have already cleared him of aiding the Taliban without even talking to him... or the Taliban. The CinC has declared him some sort of hero.
Hi underlings know better than to step on feet.
Having read the announcements of an unknown military source who made those statements about Bergdahl & the Taliban; I interpreted them as 1) someone wanting a moment of fame as a “confidential source” and 2)stating the obvious, that no investigation had started.
I do not see the statement as an official pronouncement of “clearing him of aiding the Taliban.” Now, if it had been an “unnamed administration source,” that is a different matter.