I would hope that as @prisoner-monkeys writes, Tilke would look at the need for those chicanes and ditch at least that one before the steeply uphill bend.
I’m guessing that chicane before the steep uphill bend is there because the next corner is a steep uphill bend without any run-off. If a car crashed at speed, it could potentially flip over the fencing, and there would be a world of trouble.
I’m still a little sceptical about these plans, though. The roundabout is not only completely necessary, there’s actually only one road in. It would have to be divided in two to fit a Formula 1 car, which means it would literally be single-file through that section because the road would only be wide enough for one car at a time. And I don’t think the FIA would ever agree to that.