I think your hunch has a good chance of being right, Jourles. As we critics of 'Tower blood policy all know, that small word packs a powerful punch in this whole debate. That the Tower are using the word could well mean they're paving the way for new light, IF they choose to introduce it.
It could also be something the moderates in Writing have introduced in order to create a situation whereby the blood doctrine can be backed away from. As such it could always be canned by Jaracz's conservatives.
But if they DO introduce the change, how to do it? Such a major reversal would be difficult to hide in the QFR section, one of their favoured methods for discarding old light. Would they have the balls to have major articles detailing and explaining the change? We certainly have lived to see interesting times!