Sorry, we don’t have a specific deadline for this yet. The new SDK appears to merge the IoT functionality into the mainline SDK, so it might require extra effort on our side to ensure everything works smooth together. We will post an update on the forum once the new release is available though.
It is currently in development, although we did not have a chance to run our full test suite on it yet, so it’s hard to give an accurate estimate. We will likely run the final tests on it in the next 1-2 weeks and depending on the outcome, will either release it or take another 1-2 weeks to polish it up.
Sorry, we are not able to 100% confirm it at this point. It will include the sources and examples from the original Nordic SDK, so if the mesh SDK is included in it (and works out-of-the-box), it will likely get included as well. Otherwise it would need to be treated as an external dependency.