do they still have batting cages? when do they open?

The batting cages are still in place, but at the moment they are not active. Players hope they'll be reopened, but current management has been focused on all the playing field upgrades and so on.

I remember seeing them two weeks ago but I don't know when they open.

UPDATE: Just visited Twin Creeks. The batting cages are still there, but they are inoperable! They were shut down about 3 years ago. Bummer. :)

I dont remember seeing them...I was just there 3 weeks ago

Yes they have batting cages.