Adding a brief background to the sentence:
Amidst ongoing negotiations, the acquiring company has announced that the final price for the transaction will be disclosed by 14 May 2010.

Infusing sentiment into the enhanced sentence:
Expressing optimism, the acquiring company confirmed that the final price for the transaction will be disclosed by 14 May 2010, signaling progress and bringing positive anticipation to the market.

Synthesizing the enhanced sentence:
Amidst ongoing negotiations, the acquiring company has announced that the final price for the transaction will be disclosed by 14 May 2010, expressing optimism and bringing positive anticipation to the market.