We have Word of God (in comments above) that Harry is about to come up with some plan. However, that plan may yet fail, or it may not be executable during this Wizengamot session but only a few hours or days later.

If Harry does not succeed in rescuing Hermione now, or at least publicly show that he has a credible plan in motion, then I predict (50% probability) that right afterwards Quirrel will approach Harry with a plan for 1) breaking Hermione out of Azkaban 2) consolidating a public political platform in line with destroying Azkaban (Harry's goal), incidentally destroying Dumbledore's and Lucius's factions (Harry now distrusts and hates them, and they're in Quirrel's way), and setting Harry up on the road to become Magical Dictator of Britain aka Their Dark Lord (Quirrel's goal). Reforging an alliance with Draco despite Lucius' antagonism might figure in. A sacrificial lamb might be framed by Quirrel for H&C's role (Snape?) so that Harry can offer it to Lucius, enabling Lucius and the Wizengamot to save some face, and laying that part of Harry's suspicions to rest.