"What is Form 8-K? Form 8-K is the form on which public companies report, on a current basis, the occurrence of significant corporate events. A reportable event is a transaction or occurrence of major significance. Spending $60M is probably an "occurrence of major significance."
But your right there is no 8-K required if: item 1.02 Termination of a Material Definitive Agreement. - No Form 8-K needs to be filed if the agreement, even if material, is terminated by its terms.
So...if the deal falls through, we won't see an 8-K.