1. How is it too late to be implemented? It doesn't interfere at all with the game, it's a new mode, so it can easily be part of an update.
2. Stop saying go play CoD mw2 and such, people came here to play Brink.
3. Yes this is a FPS, doesn't mean it can't have a TPS game mode, it's an addition aka not removing anything from the game.
4. TPS would be a very nice addition, when I first heard about this game I was very happy since I thought it was a TPS, it being a FPS was sort of a let down but still good either way.
5. Forced ADS svcks, I like hip firing at close-medium ranges.
First of all, SD is making sure that hip firing is completely viable, if you take the right weapons and weapon upgrades. Stability, larger clips, and rate of fire are your best friend.
Secondly, they couldnt just add a TPS mode without altering the game, things like being able to look around corners means that they would have to rebalence the game to make it work right. It might not be as hard as balancing a whole game from scratch, but it is something they would need time to do. Look how long its taken them to balance the normal game type...it was supposed to release a year ago.
Not to mention that it would split their fan base in half.