No this game is dead and of course Firaxis will no longer do anything to support this game as this will work well with their plan to dominate the world of stupidity.
Yeah there will be support, there always is. As dumb as some decisions have been by the above, they are not mental.
That said I do have some concerns about the mercenary nature the game has turned to, but meh, people always were able to mod before, if they lose that ability then the game will truly be dead. It's the players that really make up the bulk of why this game has had such enduring support particularly in MP; ignore them and they will truly kill of this game, money or not, they would be idiots to ignore the user base. I guess and am guessing they are not ******ed.
BTW CIV was a collossal pain in the ass for multiplayers and others early on, it got turned around by modability. When you have millions of people working on issues not just one company things work better, it's common sense. Ignore that and you are doomed. People in this game have always had input, if they reduce that they will alienate too many people and it will screw them far worse than anything ever could.
I think eventually DLC will be superfluous, no one wants to play a game where they are always paying and playing to the man, and no one will. Ultimately if that is all that happens most people will leave. It would be moronic therefore to think a company that has thrived for so long is thinking about DLC only. I think they probably are just milking the impatient. I hope so anyway, I have patience but like most people it wont last forever.