Definitely cool with sharing NPC roles for sure as its part of the nature of collaborative writing.

Back to ages, that’d place Joffrey around sixteen years after his name-day, and Arya/Sansa respectively at 11-12/13-14 or so. Fine by me, but that would also by lore make it absolutely pointless for Cersei to be regent when it comes time to Joffrey’s coronation (another difference ‘le gasp!) as Joffrey by Westerosi terms is a ‘man’ at 16 and not a ‘boy’ no longer. Gives him a lot more weight to him.

With Catelyn alive, Petyr might fancy trying to get Eddard killed in some way that doesn’t get back to him. But the thing is… is he still in love with Catelyn or Young Catelyn (who Sansa supposedly resembles perfectly). It’s going to take quite a bit of time movements to get to the point of Blackwater though if memory serves that’s exactly/about a year after [the execution]. I think keeping Sansa in King’s Landing post-Robert’s Death wouldn’t hurt much especially when she sees Joffrey’s aggravation or drifting eyes. Knowing Sansa she’d stupidly confide in Cersei for advice…