Unless a twist arrives where the true John Locke is resurrected, we will not be seeing him anymore. This means that Locke is clearly not one of the remaining candidates. So Kate's name still being there at the lighthouse, not crossed out means she IS still a candidate. Ilana has continuously said that she is protecting the remaining six(she'd say five, knowing Locke is dead). Also Kate seemed to be sought after amongst the Temple Others as an important person, because she must have been on the list. I'm sure plenty of others already thought of this. But there seems to be a lot more that didn't know. So I feel it needs clarification.