with dynamic pricing it is silly to wait. Trying to swap something out of FHR and into Virtuoso is a lot of work. Cancelling FHR and booking Virtuoso is a lot less effort for all parties (well, except Amex I guess)
The best idea would obviously be to cancel the FHR now, and rebook under Virtuoso or Luxury Privelegs/STARS. Thereafter, making downward rate adjustments is very easy if rates do drop.
Is there an advisor/agency you'd recommend for that? I've made virtuoso bookings online before, but I've never asked (or thought to ask) for a downward rate adjustment. The FHR rate I currently have is approximately $200 (total) cheaper than the current Virtuoso rate, so I'm hesitant to cancel until I figure that aspect out.