A different version of Twilight II, made in the 3D Pony Creator. From what I have come up with for her personality, she is still essentially the same mare. Same memories, core personality and values, and still adorkable. Don’t worry about her losing that trait.
 
Differences are that she is less forgiving towards the forces of evil, and were she to fight a threat as big as Tirek, she would likely kill him, knowing how well simply banishing enemies has worked in the past.
 
Twi II has lost her penchant for stress-induced breakdowns, and instead of going crazy, is more likely to focus entirely on trying to solve whatever problem has been presented before her.