> current idea is that we could do this by running 'aptitude --schedule-only'
> via the terminal plugin,
To clarify, '--schedule-only' is only intended for command-line actions. It has no effect on the interactive mode, you are better to just run 'aptitude' and not deceive yourself about the (non-)effects of the argument.
Is this package selection option still available for tasksel (i.e. is this bug still relevent)?