I think that the story they were going to tell will still happen, it will just take a while until Jake comes back. Here's the scoop:
I believe SANADA would have still joined, however, in storyline he would have been brought in by Jake. Not only is this a continuation of an ongoing theme with War Dogs, aka everyone recruited someone (Gedo picked Dave, Dave picked LA Dojo boys and Jake, and Clark picked Drilla), but it also ties in with Jake's ongoing power ascension within the group. He's a Smart Bastard after all, and it's been shown that, in kayfabe, the boys like him a lot. Even Gabe likes him!
Then, Jake would have done what he's always done, and turned on the team, since he's a leader not a follower. However, he would have taken SANADA AND the BC Outcasts with him, to form a new group. Alternatively, Jake does NOT turn on War Dogs, however he does something that blows Finlay's mind (helps him win the World Title directly maybe), so as a thank you gift Finlay "gives" the Outcasts to Jake, and he forms a third BC sub-group.
If you think about it, this stable would absolutely bang, apart from Chase Owens. It's the first-ever all Japanese (almost) Bullet Club, which is kinda cool if you remember the group's roots:
Jake – over AF, brings something different to the table, solid main event heel
SANADA – was always better as a chaser and upper midcarder
KENTA – a legend, solid gatekeeper
Ishimori – ditto x2
Chase Owens – Chase Owens
by Wren_Sinclair_Fan