I think that time limits are a bad idea.
Idle time limits are definitely okay, however. 50 players might be too few (think about 5 players in 10 guilds, or 5 guilds with 10 players... doesn't seem like enough on at once.) 65 ought to do the trick.
Also, about the last post... Definitely. 1 account per person with 1 character allowed at any given time is indeed a good way to go. It's not that hard to find a decent person to level with or transfer items with, anyway. I think that is a good idea.
^^ Although this wouldn't singlehandedly solve the problem of everyone being spread out, because usually the people who have 2 chars on simultaneously are in the same zone... Usually.
The translocators having an option for Qeynos Hills would more or less strike out the need to ever set foot in N or W karanas, and the other TL suggestions are good too. I guess the thing about TL's is, the GW Devs are weighing the intended dificulty of getting around the world versus the number of zones that should or can be open at once. The Karanas are empty anyway so all it is is a hassle to walk through em.
- Doobies / madsniper