Rosalie main story theory (spoilers, vol 7 and the 2 prequel vol)

I've had this theory in my head for maybe a year now (around the Barrier Mage book), that Rosalie will officially research healing magic. Probably assisted by Monica (or her father's book). Healing magic has been a constant topic through the series, and I theorize the country will start researching and who do we know is best for the job? Rosalie is educated in both magic and medicine and is connected to 2 sages (1 past, 1 current) which addresses the politics, trust, and nepotism.