Should I wait for a new BlackBerry from Verizon or buy the Tour now?

My blackberry curve is in serious need of an upgrade to a new phone. I like the Blackberry Tour, but I don’t want to buy the Tour, only to find out a month later that a new BlackBerry came out for Verizon. Anybody heard of any new BlackBerry coming out soon on Verizon? (Preferably one with a trackpad, instead of a trackball)