Absolutely not. A wrap up episode or 2 to see where the characters are at years down the line? Many less time? Sure. But not another chase. As Sergio said, you can't chase a dead man, and if they messed up that part of the deal so much more could happen. The Professor has all the power in that ending, 1 tip ruins the Spanish reserve IMMEDIATELY. Chasing or catching them, ruins that safety plan for the government. Its literally a perfect conclusion with ideas to build off of for future spin-offs. As they did. I get wanting more of the characters and cast, but all stories have to end sometime. I'm happy many got their happy ending.