Yeah, I had said such in the original thread where I posted that WOJ.
I hadn't yet posted that connection to time travel in this thread. But, it is more and more likely that time travel, perhaps even a denarian, will be involved in the revisiting of LC. We do know that denarians were involved in the attack on PG. So Harry might need to team up with a denarian, knowingly or not, in time traveling to PG.