I've played TCM, believe me when I say CM4 will blow it out of the water. TCM may be better graphically, but CM4 will be far more realistic. As I just posted in another thread, its going to have 52 leagues or so with 180,000 players. As for India, CM4 is going to have 1000+ Indian players so India will be managable on the international level.
(btw, I'd love to see TCM suceed as I am an Electronic Arts shareholder and thier stock has taken quite a beating in the past few weeks)