I know there has been a lot of speculation that the next pope will be an older man with "stability" in mind, but I'm beginning to wonder about that. The age calls for some boldness. In the end, it's all up to the Holy Spirit, but it will be interesting. I do doubt, though, that a man under 60 will be chosen, if for no other reason than JPII after 25+ years has left quite a footprint.
Schönborn is 58 and Maradiaga is 60. Speculation on a younger Pope almost invariably focuses on them. I am not at all counting out a younger Pope myself; I just meant to back up that there's no implicit upper age limit that I'm aware of.