It should be possible to train our T4 fighter and archer thralls and make them stronger.
For example an archer of the Exiles faction should become as strong as an archer from the Forgotten Tribes if we put him for some hours or days into a training facilty like for example the archer target which is now just decoration.
This would make the T4s of the souther map areas useful as these from the northern map and not just a waste of time in the wheel.
Mentor (like the taskmaster in the wheel of pain) could be a new thrall named mentor or just another, better fighter/archer. The thrall in the training facilty would then become as strong as his mentor. So if you have better mentors, you can create better fighters.
What do you think about this idea ?