Hamilton is in a strong bargaining position. If you have not heard Mercedes actually cut jobs in their car building business and have shifted their focus on E - cars and no doubt looking at Formula E and investing in it seriously so will this mean that their F1 programme will not be as high priority with resources moved elsewhere. Hamilton achievement's is great marketing for Merc so if he were to leave. Mercedes might take a while to get back to the front and surely they would not contemplate signing Alonso for 2021 ??