How many gamers will play in my Tennis PC Game?

[875]

I am going to create an Online/LAN PC Tennis Game.
The features of my game:
Play Singles/Doubles in your Lan Network and online
Play Singles with AI
Create your own Characters (Skills/Gym Stats) - Levelup Game
Characters can cast skills - MOBA type games

I would like to know how many gamers will play.
will it be in the range of 1-500 every day?
501-1000?
1001 - 10000?
10001- 50000?
50001 - more than that?

All in the world can play it.
It is Java-based program (Only computers with JVM can play).
Gamers need internet connection to download their characters.

[Sreemons Sreemon]

I ll, and it depends on the popularity

[843]

i think it would remain below 10,000 per month, because tennis is not much popular game over the internet..
my research says it..
you could know more about mine experience