Hi, welcome to Pokemon Solar Light & Lunar Dark Wiki! Thanks for your edit to the Fibbit page.
@mystic stone locations: Not that I've found, probably more will be added in 5.0 in the next couple months. -Lowking
Some Questions, by Brandon1991
1. Do you know where to find a Cold Stone outside of the Waytide City Quest? If there isn't, will there be a way in the next demo in September?
No, but there will be a market in Greenpine City, where you can buy stones.
2. Will the Tropic Jungle/Valley be in the next demo, because that Groilla pokemon is cute as heck man.
Yes, this will be a location in demo 5.
3. I heard that in Rassic City, the Dragon Elite 4 member Rex will be there. Will there be a battle with him or something, or will he give some rare Dragon pokemon?
No battle with rex, but with another dragon-type trainer. There will be the chance to get an egg of one of the five dragon types.
That is all of the questions! Please answer if you can!