After listening to it once, I'd say it's 3/4. =/

EDIT: Well, the main part I mean. That intro is kinda weird...

Here's how I'd do it:

http://auriplane.net/wowexample.gp5

Actually, I'd rather write it as 3/4, and put fermatas on the extra long notes. Unfortunately, Guitar Pro doesn't let you do that. (A fermata indicates that a note is held for longer than it is written. How long is up to the performer, and it's varying a bit in this piece.)

Don't worry about getting the exact length of the long notes right. Just write an instruction to hold the notes (hit T to add text) or make an approximation, like I did (two measures, three measures, etc.)

Yeah I agree with both, it's 3/4. The intro is just really rubato.

Thanks for yr fast & interesting answers. Well good new , 3/4 sounds really better for me , transcription per ears is already damn difficult, I dont need a strange 5/4 stuff ^^

I'm going to work on it from Auriplane .gp5 part

Oh sir Kenor just released a wonderfull tab about this tune :

https://gametabs.net/tabs/world-of-warcraft/temple-of-the-moon

Really a great transcription