Ann: Successful A$21.5 Million Capital Raising, page-22

Your highlighted remarks from the company are probably more directed at a cautious investor such as yourself.
Longterm shareholders here would consider it normal and Ardea would be likely negligent in not stating the obvious. Even you would know that we can only be certain of two things in life and I will save from stating the cliche.
So I assume you would want a rock solid guarantee? It will never happen until the writing is on the wall and money changes hands, unlike a peer that shall remain nameless.
I could state some examples why a company like Ardea would never give an iron clad guarantee, unfortunately if that remark isn impediment to your buying in, then perhaps you expect far too much.
Maybe you expect far too much and yet not long ago you could have to set for as many shares as you wanted for 40 odd cents.

There are also other reasons (imo) why one might want to be a shareholder, even apart from getting a strategic partner on board.

Good luck with your decision.