jka options conversion in t/o

Does anyone have any idea on JKA options
We know it will be at 0.468 but at what expiry date & strike price??

The below was mentioned in page 3 in the t?O document:

Tangiers has also undertaken to make an offer to acquire
existing Jacka options on issue in return for issuing new Tangiers options with the quantum and
exercise price to be adjusted consistent with the offer ratio for Jacka shares. Tangiers shareholders
and option holders will continue to hold their existing Tangiers ordinary shares and options