I think for this season, unless we have a number of injuries LSL (Lukhan Salakaia-Loto) will need to be playing in the Row, if anything it'll be McReight/Wilson moving over to 6 to make way for the other (McReight the more likely to play 6 IMO), it'll depend on who's got better control of the ball at the back of the scrum (especially after JP gave Wilson a serve for not keeping it in!). We have so many good young options in the back row I don't see there being any way LSL (Lukhan Salakaia-Loto) plays 6 this year and honestly, I think he only really played 6 last year to get him in the Wallabies squad, but I love the versatility he brings to the table, I don't hate the idea of moving him to the bench if we decide to go with a 4/4 split. Both Blyth and Hockings are capable Super Rugby locks too.
IMO the pecking order for backrowers is something like this: Liam Wright, Harry Wilson, Fraser McReight, Angus Scott-Young, Seru Uru, Tom Kibble. But EVEN Kibbel is a quality backrower who would probably make the XV for a few other Super Rugby Clubs.