Agreed, given it took only around 16 years for the "impossible record" to be broken, he'll probably want to set the bar much higher and I don't blame him...personally I'm hoping he gets to 10 WDC's and 150 wins...give the kids something to aim for. if Aston Martin becomes competitive I think Russell should start looking in their direction...he might sooner find a drive there if Hamilton stays put.
Then again, maybe Williams might bounce back if they manage to hire the right engineers and build a competitive chassis...they already have possibly the best engine supplier.