The body of the book I am working on uses superscript numbers without punctuation for the references to the end notes. I am using the grade 1 symbol indicator (unless in grade 1 mode already), superscript indicator and the number. However, in the actual notes section at the end, the numbers are not superscript, and they are followed by a period. Would you retain the period and ignore the fact that the numbers were superscript in the body?
If you are following BF 2011 (which I know is all you have right now) then yes. If you want to follow the 2015 rules you do not need to insert page numbers preceding end notes...and you wouldn't need the TN. Just show them as they are in print.