An embarrassing derailment of President Francois Hollande's 75 percent millionaires' tax may open an opportunity to water down a scheme that had damaged France's image with international investors, but he is unlikely to give up without a fight.

Finance Minister Pierre Moscovici has promised a redrafted tax on the wealthy will be pursued next year, following the Constitutional Council's decision on Saturday to strike down the emblematic rate on income over 1 million euros ($1.32 million).