Yeah I don't think Kimi can win the Championship unless the likes of LH, SV and FA have another couple of DNF's each. Based on the recent races the question is does the Red Bull have the pace to keep up with the likes of the McLaren's and FA's Ferrari? If the Red Bull doesn't have the pace it might turn into a two horse race between FA and LH. Hopefully it'll be a last round decider.
I think perhaps have had there couple of years at the top and perhaps it'll be McLaren again. A quick look back over history shows at different times one team was more dominat than others, Williams in the early 90's, then McLaren, then Ferrari, Red bull etc..
These things come back to the top teams, so sure you could move to the more dominat team over the last few years, just to find the team you left become more dominat again.