I'm pretty much Qing for PvP all the time when I'm playing. Since early access started I've had about 8 - 10 matches only. I see on the frontline standings that many players have a lot more matches going on in my Datacenter. How they do it I have no idea.

The new expansion will probably have to "settle in" before PvP kicks in for full, but as of now it's pretty dead.

Just for fun: I don't know if these numbers are correct at all, but I've been trying to estimate how many players are "serious" about PvPing.

Lets say there are 500000 subscribers in total where 50000 is on my datacenter. As a wild guess 10% of these are "serious players" (ie play more than 1.5 hrh on an average each day).
Thats 5000 dedicated players. Again, a wild guess estimate that only about 5% of these are "serious" (ie actually want to PvP) PvP players.
Thats a total of 250 "serious" PvP players on my datacenter. Again, just for fun. I have no idea how close to the truth this is.