People have been wondering where Scott Lynch's Republic of Thieves and the English translations of the remaining books in Andrzej Sapkowski's Witcher series have gotten to for a while now. At great personal risk, I have managed to successfully snatch some nuggets of info from the secretive masters of Gollancz.
For The Republic of Thieves, the current plan remains to publish in November 2011, although this is not set in stone and is dependent on the final delivery of the manuscript. Gollancz have been working on parts of the book already and preparing it for production (shades of Voyager and Bantam's treatment of A Dance with Dragons), but a slip to 2012 hasn't been ruled out. Personally, given how heavy 2011 is with long-awaited and eagerly-awaited releases, a slip to 2012 for this book wouldn't entirely be a disaster. Though that said, getting the long-awaited Rothfuss, Martin and Lynch books in one year would be an interesting coincidence (and, combined with Abercrombie, Morgan, Erikson and Sanderson, will make next year's Gemmell Awards a total free-for-all).
For The Witcher books, apparently the hold-up has been to extremely tedious contractual issues which are now moving towards a resolution. Apparently once everything is sorted out, Gollancz (and presumably Orbit in the USA) will issue a statement about how they plan to get the rest of the books out.
So in both cases, no firm information, but definitely signs of movement on both fronts. What is good news is that Morgan's Cold Commands is now submitted and entering production, as is Christopher Priest's The Islanders, and both are on course for publication in the autumn.