My recollection is that ISX were given approval by shareholders to relist elsewhere if ASX allowed it or more specifically ASX de-listed ISX. I doubt ASX will de-list ISX because for ISX to successfully relist overseas would be an embarrassment to ASX and might cause Justice Davies to note that in her deliberations. ISX could and maybe should ask to be de-listed in October. Thanks to @itzgr82balive@ChillingOut@siciliavin@NashaNasha and others for staying involved and sensible posting, you know who i think you are.
On the subject of what happens to shorts held when the market opens, shorters have to pay at a low interest rate for what;s held. "Real holders" may want to see how the market behaves and roll over the short, or they may call the stock back, at a price that may well be favourable as the shorter will have buy or borrow the stock from someone else.
A sensible retail trader could put in a sell order at say $3.40 and wait to see if the shorters are squeezed.
ISX Price at posting:
$1.07 Sentiment: Hold Disclosure: Held