Yea mod's stated themselves that once the decision is confirmed (i.e. day vote ends and "YES" is still 90%, LOL), that with the whole Jagex team working on it it would only take a mere few days to implement the changes. so im thinking 15th or 16th at latest as pvp on xtc said
It'll probably happen the 14th at like noon, its going to happen even if everyone stops voting, only need 120k votes for the "we need 1m votes" bullshit, regardless how many vote it's going to happen.
I think it will happen on the next tuesday after the 14th, not sure on the date but just have a feeling and normal jagex updates used to happen on tuesdays
I think a few months if anything, Jagex seems to be primarily lazy, and they will probably put off moving the summers end questline, minigames, etc. till late next month if anything