I firmly believe in F1 that you can support both teams and drivers, that the two aren't mutually exclusive. I am a McLaren fan and a Hamilton fan. That is not to say there are other drivers or teams I do not support, Button and Williams for instance.
I loved it when Hamilton appeared on the circuit in 2007, he was like a breath of fresh air, from the very first corner. I have supported him since and will continue to do so no matter where he ends up.
The question really is would you prefer the driver to win, or the team to win? I would always support Hamilton to win the WDC, even at the detriment of a McLaren driver, however, I would always back McLaren to win the WCC, at the expense of whatever team Hamilton is racing in in this theoretical situation.
I still think we will see Hamilton at McLaren next season.