You know, I've never really spent a lot of time thinking about what Elan's secret plan was/is, but I really like the idea from upthread someone had of it involving Haley's dad leading a troupe of play actors/entertainers/clowns in a series of anti-Tarquin take-down pantomimes/plays, like Hamlet's play within a play in order to shift public acceptance of Tarquin's rule and making people realize what a bad guy he is.

The "equipment and training" he references is learning how to stage the plays and getting the costumes/props etc.

I like this for a lot of reasons:

It would be an Elan plan because it involves Bardwork
It hits Tarquin where he lives in using propaganda/population control against him
It undermines him making him the fool and the target of character assassination
The whole hamlet analogy is fitting

I think that's a brilliant idea the more I think about it.

But, like quite a few others, I don't expect to get more than a brief bit at the end with most of this happening offscreen.