Sun Sparkle

I had a story Idea for a multi-gen MLP Movie featuring the main characters of each generation (revealing that all the gens took place on the same world but across a vast forgotten timeline), in the story idea G2's Princess Sun Sparkle (or Sundance Sparkle?), who's quite important & the most tragic character in this, is about to become the new Pony Queen, the first since G1's Majesty. is one of the five main characters and it's mentioned she used to be called Sun Dancer until she changes it to Sun Sparkle (or she just adds Sparkle to her name) when she became s princess... it also gets revealed she's also one of Twilight Sparkle's two great ancestors, Twilight, (thus in turn revealing that Twilight Sparkle was actually always a princess before she became an Alicorn and did not become one because she became one), the other older ancestor being G1's Twilight. The other main team characters ('The 5 Paragons of Light'?) being G1's Firefly, G3's Pinkie Pie (which obviously causes some confusion to the next one), G4's Twilight Sparkle & Sunny Starscout... (although those characters are the main focus for this idea, the other ponies such as the remaining G4 Mane 6 & G5 Mane 5, etc, are also a part of the story to some degree)...