I would still counsel not doing anything until 12 February. If nothing happens per TJ's prediction then it would be legit to request TJ not to speculate. If they were right... well, that makes things more difficult.
As for the ip's, it would be difficult to prove that they are using TJ's comments or whether they are getting the info from the same source as TJ. In any event just treat it like common goodfaith bad edits - remove it as being unsourced. The problem with open access encyclopedia's is that no article is ever going to be perfect at all times, it sort of goes with the territory. You can only try and clamp down on matters when it gets excessive. Currently it is manageable, IMO.