When Wigglesworth extended his stay at Saracens, one rumoured option closed. If you look at the other Prem sides there are not many other options for a move with the exception of possibly Sale if De Klerk moves on. There are probably a couple of French sides that would be interested in Danny's high tempo game still.
Faf’s in year 2 of a 3 year contract. It may of course be a 2+1.
That said, the prevailing hope amongst Sale fans is that as Faf is advising his mates to come to Sale and we are giving him flexibility around SA games, he’s a happy camper and will stay at least until the end of the 3 years.
Also I’d guess his price has gone up a bit at the moment with his world player of the year nom and he can’t be a marquee player at another Prem club so that only leaves France, Japan or back to SA.