Standard unleaded will continue but instead of being labelled as E5 (max 5 vol% ethanol content) it will be E10 (max 10%) but other specs will be the same, ie: octane, vapour pressure, etc. With a standard engine not remapped to take advantage of higher octane in super unleaded (allowing ignition timing/advance to be altered) you will see no benefit other than a placebo effect of thinking that the engine runs somehow smoother or otherwise better, however you may define it. On the other hand, your wallet be emptied quicker. I think your money is better spent on more frequent oil changes with best quality oil, after all a full oil change is about the same cost as a full tank of fuel but is expected to last several thousand miles instead of a few hundred.