I believe it's only the Note 7. http://gizmodo.com/samsungs-galaxy-note-7-is-officially-banned-from-us-fli-1787833499
Of course not. These guys are not going to differentiate S7, S7 Edge, S7 Note, and for that matter S6 probably.
If its Samsung, it stays behind. My wife's work phone is S7 and we're flying in a week so we'll find out how TSA will treat it.
My guess - they err towards overly conservative and take out the whole family of Galaxy S7s....