DUI need to know?

You will have to talk to a lawyer about that, because we do not know the circumstances. But anyway - the moral thing to be done here is that you lose your drivers licenses and do not drive any more.

Could it? I suppose.

Will it happen? Almost certainly not. No need to give someone a break when they didn't learn after the first two times.

Sure, but it's not up to the accused driver.

It depends upon how solid the state's evidence is. If they have a weak case, they might be willing to plea it down. Being that it's your third time through the system, it's unlikely that you'll find any sympathy though.

Not if you had more than the legal limit of alcohol in your system

No. Now it's a felony and you WILL do time.

If its a third I suspect you have a problem or two,ones alcohol the other getting your license being revoked

Look up impaired driving. If such a charge even exists in your jurisdiction, I BET it is the actually term for DUI in that jurisdiction.