It seems Prince D. Rafael, the only surviving son of Prince D. Antônio de Orléans e Bragança and of Princess Christine de Ligne, is in a relationship with Miss Talita Vaccaro, an actress and event organizer. She is not noble or royal.
Of course it is all quite premature and we have seen that relationships not always lead to marriages (see the British Prince Harry linked to Chelsey Davy, Cressida Bonas, etc.). The question is: what will happen in case Prince Rafael marries Miss Vaccaro?
Actual line of succession
1. Prince D. Luís Gastao de Orléans e Bragança (1938)
2. Prince D. Bertrand de Orléans e Bragança (1941)
3. Prince D. Antônio de Orléans e Bragança (1950)
4. Prince D. Rafael de Orléans e Bragança (1986)
5. Princess D. Maria Gabriela de Orléans e Bragança (1989)
Imagine that Prince D. Rafael intends to marry his girlfriend, an act which has -so far- resulted in the loss of dynastic rights. That will mean his sister Princess D. Maria Gabriela becoming the future Chef of the Brazilean House? To keep this "Orléans" or "Bragança" she could then marry with a French or Portugese Prince.
Princess D. Maria Gabriela is 7 years older than
Prince D. Afonso de Santa Maria de Bragança, eldest son of the Duke and Duchess of Bragança née De Herédia, see picture:
http://0.fotos.web.sapo.io/i/obc133e8d/17577500_ZGdRA.jpeg
Princess D. Maria Gabriela is 9 years older than
Prince Philippe d'Orléans, the eldest son of the Duke and Duchess of Chartres née Manos, see picture of the boy aged 11, he is now 17 (no pic found):
http://www.noblesseetroyautes.com/wp-content/uploads/2009/12/a15.jpg
Princess D. Maria Gabriela is 15 years younger than
Prince Foulques d'Orleans, Duc d'Aumale, youngest son of the Duke and Duchess of Orléans nee De Sabran-Pontèves, see picture:
http://www2.pictures.gi.zimbio.com/Foulques+Orleans+Duc+de+Vendome+Philomena+KoHqM3Ix6gAx.jpg
Princess D. Maria Gabriela is 13 years younger than
Prince Robert d'Orleans, eldest son of the Count and Countess de la Marche née Gordon-Orr, see picture:
http://www.noblesseetroyautes.com/wp-content/uploads/2011/09/d17.jpg
There are really not that many options left to keep the Brazilean House Orléans e Bragança "in the family" (except marrying someone else from the wider imperial family). The closest age gap is with Prince D. Afonso de Santa Maria which brings the prospect of uniting the Houses of Brazil and Portugal in one hand...