Currently the law says that anybody has the right to refuse to work on Shabbos for religious reason. The hole in this law is that if somebody secular wants to not work on Shabbos despite his boss insisting he work, he has no legal backing, as he cannot claim religion as his motivation for taking the day off.

MKs Aliza Lavie (Yesh Atid) and Miki Zohar (Likud) have proposed a law that will  allow anybody to refuse to work on Shabbos without having to declare religious reasons.

The proposal has now been passed through the Knesset Finance Committee and is being prepare for its final readings in Knesset.

This proposal basically gives people the choice, rather than forcing them to either work or not work, whether they want to or not. Somebody can stand up and say he does not want to work on Shabbos, whether he is generally religious or not or he can choose to work, but he cannot be forced.
sources: Kol Hai News and Kipa