OK...here's my opinion on the possibilities. Please treat this info as only my opinion as I am not an attorney and even if I were there is no telling in advance how a legal process will evolve.
Possibility 1: Appeal denied. The appeals court affirms the lower court (Putnam) and the sentences imposed are determined legal.
Possibility 2: The appeals court rules in Ron's favor and issues an order stating the SA did not have jurisdiction. If this happens the sentences would be remanded to Putnam County for a "do-over." (However, if the SA did not have jurisdiction for prosecution of the three cases in question, he did not have jurisdiction for the plea deal, so the lower court could argue that this would not only negate the sentences, it would negate the plea deal as well and that a "do-over" means starting over from the beginning. Ron would appear in court to answer to all charges and could either enter a guilty or no contest plea, or take it to a jury.)
Possibility 3: The appeals court rules in Ron's favor and issues an order stating the SA did not have jurisdiction. The lower court (Putnam) decides not to pursue the two charges that were dropped in the plea deal, Ron appears in court to answer to only the three intact charges and could either plead guilty or no contest, or demand a jury trial.
Since one can never be sure how an appeals court will rule, Possibility 2 cannot be overlooked. IMO, Possibility 3 could happen if Putnam County does not want to spend the resources necessary to re-open the two dropped charges. However, a jury trial would cost the county some cash, so they might offer Ron another plea deal of minimum mandatory sentence if he agrees not to go to trial. I do not think Ron would accept such a deal, though, because pleading guilty or nolo would net him the same sentences that he now has.
IMO, Possibility 1 is the most likely.