#4 Valtteri Bottas
It may come as a shock to see Valtteri Bottas included in this shortlist of drivers to possibly replace Raikkonen.
But over the last few months, we have heard ongoing rumours of Red Bull's Daniel Ricciardo moving to either Mercedes or Ferrari for the 2019 championship.
It is looking more and more likely the Australian might be Hamilton's new teammate but it is still all up in the air.
Bottas has proven to be quite the strong number two driver at the silver arrows since his arrival in 2017.
In his first season at Mercedes, Bottas claimed three victories to help the team achieve a fourth successive Constructors' Championship.
Himself and Hamilton have so far been good teammates especially when you compare their friendship to Hamilton and Nico Rosberg's.
Could we see one Finn departing Ferrari and another Fin taking his seat?