I had no idea about releasing date of KDE 4.1 which the KDE team claims that this release will bring large improvements to KDE desktop. However, from KDE 4.0.3 release note (they might state this in the previous release note but I haven't noticed that :P) they claim that the release date may be some times in July this year (it is possible that the date will be delayed as usual, though :P). And that makes me panic!! Because I'm currently mainly translating the stable release (4.0.x) and that's not a good idea.
So, to other translators, it is a good idea to proceed to the trunk branch translation.
Thank you :)