Answer:
The answers are no commitment, the price will not increase to 90 dollars, and there is no additional stock-price increase.
Explanation:
The anoucement of a share repurchase is not a commitment to continue repurchases, so the information content of a repruchase annoucement is less stronger, so the stock value may not increase as much.
The value of any information in the announcement should be priced immediately into the stock. Thus, there should not be any additional stock-price increase.
