id be happy its coming at all!! if remembering correctly they said it wasnt even going to get the upgrade but then changed their mind. This is probably why it wont be ready until later on and knowing this team, i wouldnt count on it being ready at the date they have marked regardless.
As for the FPS in TD2 i cannot get my head around why it has taken so long, i can only presume lack of player base in the game right now or lack of dev team......either which way it does not bode well if there is to be a TD3.