It has previously been rumoured that
Esteban Ocon will be replacing
Nico Hulkenberg at
Renault and reports are now suggesting that Hulkenberg could be taking
Romain Grosjean's place at
Haas.
FormulaF1 have reported that the announcement of the Ocon to Renault move will be made this weekend and that Haas will announce Hulkenberg as their 2020 driver the following week at the Italian Grand Prix.
If these reports are true then it looks like Grosjean will be out of Formula 1, unless a seat at Williams becomes free if Robert Kubica doesn't stay on.