Owu96, I think there were a handful who came in from CTC who'd been through the 'wings' course (6, perhaps?) last year, although after having then gone through the BA assessments. It's not something I would bank on, though, and may have been a bit of a one-off anomaly when there was a sudden need for a handful of extra cadets.
Particularly considering the number of cadets and DEPs coming in over the next couple of years, the two clear routes in are through the FPP or as a DEP after a good few hundred hours at another carrier. Whichever route, you still need to pass the same assessments. You'd also benefit from (potentially) a guaranteed loan if you required it, from the point of being accepted.
In short, while not impossible, it's improbable that the 'wings' course would lead to a quick entry into BA. Far more likely to end up elsewhere initially.
Good luck if you're applying.