Some very interesting news. I have heard through the grapevine that there is a reasonable possibility that the conference may be cancelled! It looks like the pressure is working, so it is time to maintain pressure and be ready to consider our next course of action. I wouldn't like to speak too soon but if this is true this could well represent a significant victory for trans people over transphobia, and we should be ready to make a big deal about it if it does.
No decision has been taken yet, so we should maintain pressure, but the mere fact that this is a possibility should be taken as a battle won. Our actions are having an effect and this is very encouraging. Fantastic stuff everyone!