Mercedes
- Hamilton (has contract)
- Rosberg (has contract)
Red Bull
- Ricciardio (has contract)
- Verstappen (has contract)
Ferrari
- Vettel (has contract)
- Raikkonen (has contract)
Force India
- Hulkenberg (has contract)
- Perez (has contract)
McLaren
- Alonso (has contract)
- Vandoorne (has contract)
Williams
- Bottas (likely) nowhere else to go but down
- Wehrlein (?) rising star in Mercedes young driver academy
Haas
- Grosjean (likely) could potentially sign for Williams, but unlikely since probably dreaming of 2018 Ferrari seat
- Giovinazzi (?) young Italian potential star to be?
Toro Rosso
- Sainz (has contract)
- Gasly (?) Kyviatt underwhelming and Gasly is Red Bull's shiny new toy
Renault - they really wanted Perez, Sainz and/or Vandoorne but not happening
- Magnussen (likely)
- Ocon (?) been keeping up w/ Werhlein, also he is French and did beat Verstappen in F3 2014
Sauber
- Ericsson (likely) his sponsors are linked to new team owners
- Nasr or Guttierez (?) depends who has deeper pockets
Manor
- King (likely) daddy is chairman of Manor and has deep pockets
- Stroll (?) daddy has deep pockets
my 2 cents