Stupid questions, but just to be completely sure.
1) Will you be able to pick up zen fishing from the fishing trainer in Stormwind the minute the expansion is released?
2) Will you be able to level up fishing from 525-600 in Stormwind?
3) If not, what is the fastest way of doing this?
1) you can pick up zen fishing from any fishing trainer if you are lvl 5 or above
2) you can lvl your fishing in any fishable water
It will take on about 5 fish pr still, that being said you could get a skill every 2 fish or every 10 fish, its random luck.
It will take about 2 hours to get your fishing up to 600
Got it, thanks!