I am an avid fan, collector, and builder of your products and I would just like to offer some ideas for some of the models you'll be making in the future.
Kingdoms: There is a large community of Castle-themed collectors, and we hope that the Kingdoms line has not been discontinued. Many of us were hoping that you'd make a large $100 castle set that would be the main castle for the Green Dragons.
Black Knights: To this day, the classic Black-Knights/ Black Monarch theme continues to be my favorite. Please consider re-releasing this castle group either by re-releasing some of their classic older sets, or by re-releasing them in new sets, or by updating them in new sets. It would also be very cool to have the Blue Dragon of their shield made as an actual creature, roughly the size of the original Green Dragon in the Dragon Masters line.
Greeks and Romans: There has always been, and continues to be, a titanic demand for this theme. We all thank you for the collectible minifigs that have addressed this, and we continue to hope that these will be made into regular sets. The Spartan collectible minifig was not available to everyone, and the Ebay price for them is at a premium. I just hope that people like me can have a chance to enjoy a Spartan minifig!
I am a huge fan of the Lord of the Rings and Hobbit lines and the models that you've made. Since you've made wargs, I would like to suggest that you also make other fantasy creatures for the regular Castle theme, and that they can be ridden by minifigs and accomodate a saddle and/or barding such as:
Lion: with mane and tuft of hair on the tip of the tail.
Tiger: with stripes and a ruff of hair around the cheeks.
Wolf, Ram, Panther, Giant Eagle, etc...
Chima: I hope that you'd have a group of Tiger warriors in the future, to do battle with Laval's group of Lions.
General Castle: Since there have been many factions bearing a Lion on their shields and emblems, please consider making some warriors/soldiers with a Tiger as their emblem. They could have exotic helmets, exotic armor, exotic weapons, etc...
Thanks very much, and I hope that some of these things might be seen in the future!