The situation at McLaren I think is being driven by LH and Merc’s discussions.
IIRC Merc came out and said we’ll talk to Lewis at the end of the season and get things wrapped up within a few days of Abu Dhabi.
Shortly after McLaren came out and said they would have an answer by 1 Dec.
Then Lewis comes out and says ‘no rush guys, I’m world champion and things can wait a couple of weeks’.
At this point McLaren suddenly show more indecision.
Alonso no doubt is waiting to here the outcome of LH’s negotiations so he can factor in a suitable break clause / performance clause whatever that will leave him free to go to Merc should McLaren Honda be crap.