I don't know where they got the wood, but the same people that make the standard wood stocks for them made the maple stocks. They are completely identical except for being Maple. I have one of those and it is a very pretty rifle. Unfired at this time. .25-06.
Apprently Boyd's is making some maple stocks for 700 CDL rifles and believe are supplying the walnut versions to Remington as well. There is a guy on eBay that was selling and may still be selling some of the seconds. Both walnut and maple. I came very close to ordering one of the maples for a .25-06 BDL. Not sure he has any left at this point.
No idea which distributer is going to be selling the rifles, but AFAIK, they are not yet on the market.
EJ