First a Resurrection set, then a Revelation set. Now there's two
more Dalek story sets on the way!
Destiny of the Daleks
Genesis of the Daleks
Now the only Classic Davros serial left is Remembrance of the Daleks. If such a set gets made, 7th Doctor and Davros variants are a given. The Special Weapons Dalek would be an obvious choice for one of the Daleks.