Ann: Fifth Supplementary Target's Statement, page-50

They can offer a higher price before December, it just has to be after the current bid ends (2 weeks).

The only reference to Decmber 31 is that any further T2 proposal made prior to December 31 must guarantee remaining holders atleast $1.35 in value.

I think T2 are well aware $1.35 will not be high enough to get everyone on board, unless they get to 96.41% before the bid ends in 2 weeks (and that is definitely more unlikely than likely in my opinion).

It will be interesting to see how T2 approach this going forward. The longer they leave it to attempt compulsory acquisition the more they will need to pay in my opinion.
Net cash as at 30/6 was $111m ($136m less $25m tax liability declared in IE report).
That's the equivalent of about 44 cents per share. It increased by about 13 cents per share in the June quarter.
Although Realm warned the price has softened they had a further pit come online during the quarter and also suffered from a lack of port access due to other miners not having enough stock to ship (probably could of shipped more otherwise).