Bjorn hinted that he would be selected, regardless.
It's really hard to see four strong, in form, wild card names out there. But let's try to break the competition down, assuming qualification ended today.
Stenson has some excuses with injuries and still netting some good enough results so even without a good FedEx it's hard not to see him picked.
Casey is just outside on the World list, has a very good OWGR and a resume. Limits himself a little by not playing on the ET, but would be a likely wildcard.
Olesen is just outside the team on both lists and a dane, with solid form, so sounds like a likely wildcard to me.
Cabrera-Bello can still play himself onto the team on his own, but don't think he would get a wildcard at this point.
Fitzpatrick has faded quite a bit since US Open. Similar scenario to Cabrera-Bello.
Knox is reasonably high on both lists, was T2 at French Open. Form right now is not so good though, a long shot.
Don't see anyone else particularly close, maybe maybe if Pieters starts delivering something special.
So basically I would assume the wildcards go to Stenson, Garcia, Casey and Olesen.
But here's a kicker, Poulter could be bumped out of an automatic spot still and he would be a sure wild card. That could potentially make it a much tougher decision for Björn between a countryman in form stacked up against the decorated veteran without form, assuming Stenson, Poulter and Casey grab hold of the other three. It could also be a decision between Casey and Garcia if Olesen takes an automatic spot.