According to someone close to the Wheel staff, from a WOF site I run. Source is anonymous, and paraphrased, and not mine.
1)Halloween Week was taped first (7/14), and the season premiere week was being taped 7/15. The reason? Shows often tape out of order to take advantage of grouping similar sets and avoid having to make drastic set changes in a short period of time.
2)Trivia categories could possibly be coming back. "Rock On!" will probably be retired due to obvious reasons.
3)New graphics and logos. The logo posted on the show's Wikipedia page looks "similar" to the actual logo.
As per a post of Invision, there's a new logo and a new puzzle category, TV Quotes. They'll be taping in Portland, Oregon next March and the shows will air next May. No word if they'll travel somewhere else.
I have no issue with what you do, but please- that info at Invision is not first-hand, as said by the OP of that thread. I hate to get huffy over something like this, but it's from my site, not theirs. Invision was doing what you and I were- spreading the info, not documenting. Give credit where it's due.