Lucci will end up in a scenario where he'd end up betrayed by Saturn
Is the worst case scenario that he is afraid of an almost dead guy
I think Lucci faces another problem, which is entirely personal, if you noticed his odd behaviour during the whole of Egghead. And this problem will lead to him being in the line of fire between the WG and Vegapunk. And if you look at what we know and what we still do not know, you can notice that Oda is still hiding something very huge from us (that involves Lucci heavily):
- the time skip
- the person, who gave Luffy food
- the giant robot
- Lucci disregarding mission-goals and orders given to him by the WG while on Egghead
- Sanji's odd behaviour regarding Stussy being hurt
- the fight between that person vs. that person (it still needs to happen by chapter 1108)
- etc.
If you really think about it, than we are still missing what I would call the main problem of the arc being adressed. And with it, the list above will be adressed as well. Just wait a few more chapters until the Kuma and Bonney part could breath a little. Then Oda will adress the rest, which is: Vegapunk and his satellites, Lucci and Stussy, maybe even Kizaru.