As you know the law will oblige website applies many GPRP compatible. As the UXthem will have to comply with this rule by the end of May 2018 they could implement on Flatsome The risk is 20 millions penalty or 4% of revenue, not joking! Enough to kill your website project!
The theme should integrate a maximum of those functionalities as plugin has to comply with the regulation.
Flatesome could start with a nice cookie consent with approval.