If I were ever in the unlikely position of staging this, I think there are three big questions arising from the script. First off, Jason - idiot, philanderer, or Machiavellian? It's not at all clear from what Euripides gives us. I think I would prefer to have him making clear-eyed political decisions, and then devastated by Medea's sabotage. Second, the Chorus - in today's theatre, really you would want her to be a single female character, observing and commenting, but also participating and encouraging. And third, the slightly weird thing is that the entire play takes place in the street outside Medea's house - which therefore becomes not a place of domesticity but a mysterious location which people enter and from which they emerge changed. This may not have fazed the ancient Greeks who expected the three unities to be preserved, but a modern audience will wonder why we never see inside the buildings.
Anyway, it's a powerful character study of a wronged woman exacting revenge. Rather thrilling.