With the TCI essentially in their corner unless a superior offer comes about, I think its fairly likely this is all she wrote.
I dont forsee UAC upping their bid, infact will probably take the offer up themselves, after offsetting costs probably walk away with a profit of their own.
Failing the compulsory takeover, I dont wish to be at the whim of a foreign company as a NCI with no venue to sell my shares once IFN is delisted, ill probably take up the market premium and sell over the next few days