She may very well have already been contacted though (or even finished all her voice lines for 5.0). Her answer, if you brought the essence of it properly, is what one would consider a "non-answer". Basically it doesn't say anything at all other than her not being personally opposed to it (or at least, not wanting to be open about it).

She would surely be under non-disclosure agreement in that case though. If for no other reason than because Fran getting voiced lines guarantees her coming back after the raid is over which was not officially released yet.