Not really a nextgen but heh :^)  
Queen Flurry Heart Cadenza (formerly Princess), daughter of Queen Cadence and King Shining Armor, is the oldest of the Royal Trinity (i.e. her, Solar Radiance, and Orion), nearly a decade older than the other two. She is the ruler of love, passed down from her mother, and wears the same royal attire that Cadence once wore as well. While the war had left scars on even the most courageous of ponies, hers are more physical. Her father, however, suffered the most. After the death of Cadence, he became a sullen, shut-in shell of his former self, and Flurry was forced to step in as the new, sole ruler of the Crystal Empire. Being the oldest, she has the most experience under her wing and is better at managing a country. Thus, she often helps Solar on what to do.  
Personality: Despite everything, Flurry maintains an optimistic, cheerful outlook that masks her sorrow underneath. She is goofy, light-hearted, and friendly, with a splattering of what Orion calls ‘daft’ and ‘bird-brained’.  
Special Talent: As her name suggests, Flurry loves snow most of all. While she still is the ruler of love and spreads it everywhere she goes, she has a thing for controlling the weather as well, such as when it rains, when it snows, if it is sunny, or if there needs to be wind. It is a delicate system, and Flurry is an expert at maintaining it carefully.