Below are shots from the 24 series finale set originally posted by Splash.com.
They believe the last pictures were indeed one of the last scenes for the show.
Listed is Henry Ian Cusick *Desmond from LOST*, he played as Theo Stoller from Season 5, a german special intelligence who had a deal with Jack in exchange of the WET list for Collette Stenger, who has some kind of contact with Vladimir Bierko. However, Jack destroyed it after the exchanged.
And since this is the series finale, and we know about the movie being shot in Europe, that could serve as the connection.
I could definitely be wrong, maybe just overthinking