There has never been a report that Ausmus is a confirmed candidate, let alone someone who's been interviewed. Unlike Phil Nevin and Chip Hale, who have both been interviewed.
If it takes forever it might make sense that it is Kapler, since he's busy (despite that also being true of Cora).
I would not rule out Velandia, especially considering how tight-lipped the team has been about nearly every candidate besides him, though it's possible the articles about him and Samuel came out because they were internal and, unfortunately, because of the minority interview requirements. I don't recall reading any details about Wathan's interview.
I also wouldn't rule out a hire whose name has never been confirmed as a candidate.