Auth

That being said, I would really like to see someone address, in the CI world, just what needs to be included in an auth system.  A "How-to" on Auth, oriented to CI3, singleton, PHP 5.x.  There are plenty of books on the subject and they are still an uphill climb to digest and they generally are not CI oriented.
/rant off

Well, the guy who authored one of the most popular CI Auth libraries did write a book called "Building Secure PHP Apps": http://benedmunds.com/ion_auth/ 

I haven't read it, or used Ion Auth, so this is not an endorsement, but it does often seem like there are a lot of people saying "we should have this!" without taking the time to see if what there are asking for might already exist.



When it comes to mine and Narf's opinion, my opinion is just the opinion of another CodeIgniter user. 

Narf's opinion is more than an opinion.  It's information on the way it's going to be, coming from the guy who is (singlehandedly?) writing the Session Class for CodeIgniter 3 (and probably a lot of the other classes too).