I think she can't portray the OCS character correctly because she's too nervous at competitions at the moment, so I would totally be okay with them changing to something she's more comfortable with: she missed out on a lot of the off season and it was a lot of change all at once so it made sense.
I tend to believe this rumor mostly because I really do hear Tosca in the 2A clip (it's becoming one of her best jumps, amazing), but who knows really... we'll find out soon enough. If she changed, I hope it will help her feel more confident and at ease in competition with her SP, perhaps she will feel more at home with something dramatic. I don't know if the rumor Misha Ge may have choreographed this, but if he had she would also be very comfortable with him.
Can't wait to find out!