Eh. It's not common, but yes, they can be charged criminally, but the rules for what constitutes criminal infringement are pretty vague. Purposeful intent is one of the hurdles to get over, and this sever has that in spades - but ultimately it's up to the district attorney to bring charges, or whatever the equivalent is in France. Most IP infringement is dealt with civilly. I only say that to stop any "They're going to JAIL" comments - it's highly unlikely. Usually criminal charges are brought up for distribution, not sure that this is distribution in any sense, really, unless they were offering the client for download off their servers, for sale. But even then, criminal charges are extremely rare for sharing movies and music.
He borrowed heavily from Christian, Norse, Greek, Celtic and a multitude of other mythologies to build his universe. He talks about it in his letters to other people.
There are very few original ideas in any creative medium, almost everything is based on what came before.
Like I said there would be more than enough players to make it worth the time, but there would be a drop off. It's pretty simple logic really. You are going to have tons of people from live and various other areas that are going to come try it and either like it less than live, have the nostalgia burn off and leave, or discover it wasn't as great as we all hype it up to be.
I would figure at best you are looking at a long term stable size of no more than 500k and probably no where near that. Considering there have been over 100 million WoW accounts made over the years, that spells surge with a decline and then stabilizing. I am a legacy supporter but I am not crazy enough to believe that it has infinite growth potential.
You're grasping at straws at this point. I suggest you go watch "everything is a remix" so you can get past the WoW stole from X and Y.
Because Warhammer also was heavily inspired by some sources. I work in the art field, and I can tell you right now, the advice you hear over and over is to take 2 (or more) ideas and mash them into something new. Robots+trucks and you suddenly get transformers.