From the glimpses we have been offered of the ongoing BBC website redesign, the changes in the offing are going to be perhaps the most significant in recent years, but well short of being radical.
The grid composition is going to change.
"The new grid is based on 31 sixteen pixel columns with two left hand columns [...]

I was just listening to what newspaper designer Jacek Utko said at a TED conference a few months ago; and it seemed to me that the most important part of what he said came towards the end - his description of design as part of a process of ‘not chaning the look but improving the [...]