Audi platform cycles have varied. The B5 cycle was 7 years (1994 to 2001). The B6 production started in 2000 but it wasn't popular and so was heavily facelifted in 2004 and actually became the B7 which lasted until 2009. Then the B8 cycle was 7 years until 2016. So that does indeed predict that the B9 should be replaced 2024 or 2025. But if it is replaced then Audi has to face the issue that governments are bringing in bans on the sale of petrol and diesel engines. I understand that the UK's is scheduled for 2030. There has always been a question on the profitability of the RS and S variants, and they are usually justified as attracting buyers who will then buy other models. If the mainstream models are electric then that may no longer apply.
I make no prediction, but it occurs to me that if Audi already phased out the 3.0 TFSI in the UK for the 3.0 TDI, there is a possibility that the 3.0 TDI might not be available at all for the B10.
On the ACC and FBSW matter - I have both on my S5 and it works so unfortunately the above statement about sensing is possible not entirely true.
I make no prediction, but it occurs to me that if Audi already phased out the 3.0 TFSI in the UK for the 3.0 TDI, there is a possibility that the 3.0 TDI might not be available at all for the B10.
On the ACC and FBSW matter - I have both on my S5 and it works so unfortunately the above statement about sensing is possible not entirely true.