I think that saying that Tomb Raider is a failure implies that Square Enix have done very little analysis in this issue., because:
1) They haven't considered online downloads, which nowadays is an essencial sales channel,
2) It has only been a month since the game release
3) All the costs associated to game development, characters, technology, movements, etc, can be considered as an investment for the continuity for the franchise, therefore the future Tomb Raider games would have a considerably lower cost of production making them very easy to be profitable. They could release one title per year like Assassin's Creed, making the subsecuent games very profitable.
Considering all this I think the only explanation for Square Enix declaration is that they needed an excuse to change the CEO, and they blame it on an excellent game who already has sold millions of copies. I hope this doesn't stop the production of future Tomb Raider games.






