ZS-SLF was very much around as recently as 2 weeks ago when I last flew through Joburg. She doesn't appear to be scheduled to anywhere regularly, but is subbed in as a spare if one of the other 330s/340s goes tech.

I've been unfortunate enough to have had her subbed in twice this year (replacing a 330 and a 346 respectively) and believe me, that plane is falling apart inside.