Fuel grades, E5 and the coming E10

After stumbling across an article in the Express about the blend of petrol changes, im slightly concerned about the future for us and being able to fuel our cars

The newer grade E10 (10% Ethanol) will be sold alongside the current E5 (5%) but only for about 5 years. So this would take us up to 2026.

Does anyone have any insight as to how our cars would react to these fuel changes?

Pinking/knocking was mentioned which I know isn't good, I imagine the ecu will react to that as much as it can with timing adjustments etc but it can only go so far, also a power reduction would be likely i presume.

Higher ethanol content is corrosive, so what are we likely to have to change in order to keep going in years to come?

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From what I’ve read, super unleaded will still be available in E5 form. I only put 99 RON in anyway but it’s still a pain in the arse for hundreds of thousands of older car owners.

if we had the option of E85 we would all have the option of more power. E85 will stop knock. but need a gasket/seal changes to E85 safe seals. and a flex fuel sensor so you can use normal petrol and E85 .
but this is a different topic.