The next release of Saturn and Titan will be version 4.0.0. Moving to Qt for development was a lot less painful than anticipated, Titan is largely complete. There are only a couple of issues to address but the important thing is that it runs on Linux and OS X, I haven’t built it on Windows yet and as the prototype runs successfully the shouldn’t be any problems.
I was going to use Qt 5 but it has a problem extracting the parameter data in the Saturn seed files so that not all of the colour data is retrieved thus mucking up the resulting image. Qt 4.8 doesn’t have this problem.