When is Wish You Were Here going to be SACD

Likely not anytime soon. MFSL passed on doing a cd remaster because the master tapes were in such poor shape. From what I know, there is no good copy of that album on any medium except perhaps the original vinyl.

When TSOTM was re-released last year i was told at that time WYWH would be the next release. The same folks that did the DSOTM would be doing most of the Floyd catalog in both SACD/Hybrid and Vinyl
I too am waiting

Be careful with "new" SACD releases of rock/pop albums! Many use a 16 bit digital master, so you are essentially buying a regular redbook CD encoded in bit stream SACD! The best sounding WYWH that I have heard is the copy from the "Shine On" box set released in 1990(?). This copy is FAR SUPERIOR to the Jap. CD pressing. Also, I compared "THE WALL", on gold MoFi CD, with the aluminum CD, again, from the "Shine On" box set. The "Shine On" pressing ws the clear winner. MoFi CD's, in my opinion, were hit or miss! Some sound great; others are disappointments. I have 4 Elton John MoFi CD's: Tumbleweed, Honky Chateau, Goodbye Yellow Brick Rd., and Madman. The first 3 sound great, but Madman is a sonic turd!!! And Madman is one of the more expensive MoFi CD's!