Even if ISX does start trading on ASX again, i think it will be...

Even if ISX does start trading on ASX again, i think it will be short lived.
In my view, management must be absolutely sick of this and won't want to go through this ever again.
As most people say, impressions do count and ASX has definitely given off a bad one to ISX. No matter who is in charge of ASX, the relationship is definitely gone.

They will most likely move to another major exchange and then dual list on NSX when it is ready to be the next 'Nasdaq of Australia' (as JK put it previously).