That's such a cheap, bandaid solution, though I'm sure it's the one they'll go with. God forbid they actually put in the time and work to provide new companions, who could actually be written as polyamorous, from the get go. People keep asking for more companions anyway, so why not do both at the same time?
No matter how you spin it, SH's behavior and dialogue are intended to be monogamous throughout her romance. She is inconsistent with the other stuff. So the only way to actually have consistent, logical writing is to either retcon her whole character and romance or scrap the other stuff with her.
They could create new companions specifically for a poly experience, if they actually cared enough to do so. But they'll take the easy way out I'm sure, if they even bother to do anything at all.
