Wooow. Barely is AoM out and now we have another coming? And it is desert themed… which was always my favourite type of area in Diablo II and III and Titan Quest as well.
I am glad that we only have a new area and items/powers coming and no new class - I still have not even tried half of the class combinations yet despite this game being what I have exclusively played for the last half year or so. 
And I assume the sun+forgotten god means Empyrion, aka Korvaak. The more lore, the merrier! I also assume we will finally go South from Devil’s Crossing. 
No thank you, stupid seasons and their to me, minimal “rewards” was what made me bored with Diablo 3 pretty soon. I still don’t see the point of these, it’s more like stuff for people to brag about exclusive pets and skins that they can only get by replaying the exact same thing with the same character build over and over again… aka, grind.