I just hope they fix the framerate and monster issues that ToS DotNW had. Killing a group of monsters, then having them respawn literally two seconds later really pissed me off. There's no sense of satisfaction or achievement after killing them. It's like they were artificially trying to make the game longer my having people run into the same monsters over and over again.
The more the system is like Vesperia's, the better.
2 seconds? It was a lot more than two seconds...oh, and different monsters appear each time, it's like a cycle. I didn't have any framerate issues.
I never noticed any kind of cycle, I was stuck trying to figure out a puzzle in one of the dungeons for a good 20 minutes. I would stand there trying to figure out how to make this bridge fall down and the same monster would spawn over and over again.
You're right through, it's not 2 seconds, but it's less time than it takes to actually fight the monster. I did a test, and it took me 30 seconds to beat the mob, and 20 seconds for it to respawn. To me, that's far too short.