In my opinion it will be main value of ZIL but not enough. ZIL dapps will start coming out later this year, while Etherum has countless dapps, massive ecosystem and ton of developers working on it, with more coming every day. Not to mention a whole economy based on it's ERC20 protocol. Solidity is the main language people are picking up at the moment with companies looking for experts in this field.
To overcome all of this and 'beat' Etherum is almost impossible considering sharding IS coming to ethereum too.
With all of that in mind I still think there is room for a project like Ziliqa in current crypto scene, their team is excellent and vision seems realistic and clear.