I think this is probably an attempt to recharge the coffers at Europacorp,which were seriously depleted by "Valerian". That cost an estimated $209 million to make and took only $223m at the BO. Thats a huge hit to take, given that his low budget work has on the whole been highly profitable.
"Lucy" cost $40m and took $463!!!!!
I'd rate "Lucy" as one of my guilty pleasures (along with its soundtrack).Its alot of fun and an imaginitive ride that kind of updates "2001" and "Altered States" whilst also having a surprising amount of action and soul to it. I'll happily rewatch it once a year.
But I kind of struggle to see where they would take the story though, I mean they effectively turned her into a Goddess at the end (not that Scarlett isn't that far from that status anyway).
Perhaps somebody else ends up over dosing on the drug (rather like TVs " Limitless") but unlike Lucy, they are determinedly evil and end up coming into conflict with her. That might be interesting.