No, only a part of the backers received their Helix.

After having delivered bikes to part of the kickstarter backers and having sold and delivered bikes bought at a much higher price when Helix was available, many years after the first backers received their bikes, they propose a choice to the remaining kickstarter backers: either pay an additional amount and received their Helix or a refund of their pledge within an undefined time.

I haven't seen any feedback about what happened after this proposal, neither of kickstarter backers who paid the additional amount asked and received their Helix nor of kickstarter backers who refused to pay and receive a refund.