What do you want to rename Template:Presidents to? We can't use that template for the Presidents of Germany, the Presidents of Brazil, the Presidents of Mexico, the Presidents of ACME Corporation, etc., etc., etc. ...
Topic on User talk:QuestionableSanity
Forgot the ping: @QuestionableSanity
Template:POTUS is the shortest possible unambiguous name. As far as I know, that acronym has no other definitions besides "President Of The United States".
Sounds good to me. I'll redirect the current template to that name; we can delete the redirect once it's no longer being used.
Thanks.