Doesn't matter. She's a defined character with a defined arc - more or less.
It's hard to imagine that these people signed a talent like Celia Gooding just to do that, or that she'd take it. This show will consume big blocks of her time - it's not a movie every three or four years.
Could be wrong.
I don't think they are going to hold these characters/actors back at the altar of canon/continuity. If this show is wildly successful, they will take a different path going forward. They'd be silly not to.