While I appreciate that a few people have a different viewpoint (even if I think it is a very delusional viewpoint), I have to vehemently disagree that any company can say an evolving game is done, and expect the game to not die.
If I am looking to get into a game, like Malifaux (not a stand alone game like a board game), and I find out that new stuff is no longer being released for the game, I will stop looking right there and move on. If a game that I am playing, like Malifaux, stops releasing new stuff, than I will have my stuff on ebay before the ink is dry. I previously played Warmahordes, amongst many other games, and I may go back to it sometime in the future, but I lost interest in the game when nothing new was released for the faction that I played, in a 6 month span. My options were to play the same thing that I had been playing multiple times a week for months, start a new faction, or stop playing the game. For the first option, I am not interested in boredom, so I did not do that. For the second option, I am usually a one faction person, so not. That left the third option, quit. If they had announced that they stopped making new stuff for the game, I would have quit the game that day.
As far as Warmahordes games getting larger, as someone mentioned, I have to disagree. I played basically from the beginning, and games were 500 and 750 points. Games are now 35 (equavalent to 500 points), and 50 (equivalent to 750 points). Yes they have come out with a new rule set for very large games, but I do not know anyone that uses it. I still go back to my point, that the only reason that I lost interest in the game, and stopped playing (at least for now), is that they go so long without releasing new figures for a faction (not the other way around). I feel that every faction, in a miniatures game, should get new figures at least every 2 months to avoid stagnation.
That brings me back to the point of this thread. Some people actually want stagnation, which just blows my mind. If nothing new is released, stagnation occurs. Stagnation is NOT fun. New and interesting things are fun. Someone mentioned Bloodbowl. I personally, may try out a game or two of Bloodbowl. That is because it is a board game. You may disagree, but it is. Like most other boardgames, I would be interested in playing a few times, then I will move onto something else that is new. If a boardgame releases an expansion, I will play the expansion some, until it stagnates, than I will move on. As far as a miniatures game goes, I cannot justify spending the amount of money that you need to spend, on a game that is just going to stagnate, due to the game no longer being supported.