If Rogue Legacy and a sequel were combined, the result would be Rogue Legacy 2. Your children will take over after you pass away, and each child is different. Your son may be a Pacifistic Chef, while your daughter might be a Colourblind Archer. In any case, one of them will be drafted.
Rogue Legacy 2 – Three New Scars (The Swan Song Update)
New Scar Locations Point of note is that you do need to be on NG+ since you need the ability found in the endgame sequence to get these three.