I think, before I ask a new release with new features these things would be really good.

Funny and useful extension of the whole 3d Gamestudio world like:
- More AUM
- More examples
- Book for the new GS

Minor but important things:
- Updated documentation with fixes and covering the hidden, forgotten or half covered subjects
- Enhanced gui object handling, like adding method to delete a button from a panel
- Unified text and string handling, for example taking in view the UTF-8
- Revised and better error messages

Major things:
- Better and extended error handling for pointers, files, images, gui objects, entities, etc.
- More handlers/methods for the above to get data, type, status

After all of these were realized, implemented, carried out, I will begin to think what new features would awsome in my opinion.