As I understand it the 8 teams making the playoffs will qualify simply by their won/lost record....nothing at all to do with conference affiliation.
BTW: 8 qualifying out of 12 is too many...imo.
As it stands the west has 5 that would qualify [out of their 6 teams]...the east 3. There is a huge disparity of quality teams between the conferences.
If Las Vegas hadn't gotten off to such a poor start, all 6 from the west might make it.