Steiner just mentioned on a podcast that he hopes to make a announcement next week.
Also when asked if Pascal Wehrlein was ever a option he said that they only had interest to hire him after their first season in F1 (so for 2017). Wehrlein himself approached him this year to ask if they have interest but Steiner rejected him. The fact that he hasnt driven for two years and already had before that not much experience in the first place is the reason why he is not considered there.
If i look how large % of rookies perform and during tests lower drivers, i get the feeling the "experience" is often overvalued. It has some value, but a good driver in the 30's was most likely also a good driver in his begin 20's. And a driver that isn't a top driver in his mid/end 20's, most likely won't be it later in career either.
Lets take for example De Vries - Albon - LeClerc - Norris - Russel comparison. Their whole career they have been quite equal competitors (LeClerc seems most talented seen by them all). If De Vries wasn't taken out of the lead last year from a Monaco Win, the whole season standing would be much difference and for sure he would have finished ahead of Albon. Not saying they still are on same level and grow on same curve, but last years top 5 F2 was very close and quite equal and one DNF (out of win position) or not had lots of influence. (Ps. quick beside note, last F1 podcast with Albon is a very nice listening!!)
Lets then take a Hulkenberg - De Vries comparison. For sure in season 1 experience Hulkenberg would be a plus, but if De Vries is still on kind of equal performance recent rookies after a year, that plus for hulkenberg would be gone. What more pluses stay over? Same in comparison Wehrlein or Ocon, (lack of) "experience" shouldn't be their rejection point imo. Equal if for instance Bottas or Hamilton would get ill and needed replacement for multiple races, or just 2021 season to place Russel in that seat, or if Bottas wouldn't had got the extension, promoting him.
Imo. the performance level of top atletes are that close that experience makes just a small % of overall performance level.
Ps. If they keep Grosjean, i won't have them as one of my favorite teams anymore for sure. They already where downgraded by me by keeping him this year .