There's only a couple of very brief shots of Margaery, but we get a reminder that she's still locked up by the High Sparrow, and she's still not looking her best. But things might be looking up. Is this a major hint at forgiveness? Reading between the lines somewhat, an alliance between the Tyrells and the Sparrows against the furious Lannisters would make a lot of sense. It would give the Tyrells legitimacy in their attempt to dethrone the Lannisters, and it would provide the Sparrows with firepower against the still formidable Lannister army.