I'm assuming that none of the Quest 3s have front suspension. That being said, on the Quest 3.0 page, it still lists extra stiff spring for the fork...
The end of the text on the side of the Q picture (scroll it down - I did it today for the first time) states "The 20 inch Quest currently has both front and rear suspension. The 26 inch Quest has rear suspension only,".
Yes, Charles, we still have 451 as V2 with the front suspension. Rather than make a whole new bike page on the website, we umm ... throw in a free suspension unit for those buying the 451.
The odds of you exhausing the stock of the 451 v2 and 559 v2 and exactly the same time seem kind of small. It makes perfect sense to me that there would be such a transition period.