I am going to close this for a few reasons:

We have a devel and jinja template that are more detailed than the classic
template.

Also roundup is self hosting for its own bug tracker at:
  http://issues.roundup-tracker.org

as well as being used for the python bug tracker.

IIRC these installations are mentioned in the docs, so should
be suitable showcases of what you can do.

While I like the ideas in this ticket, I don't think we have the people
to do it. 

I have marked this GSOC though in case people want to resurrect this for
a summer of code item.