Will World of Tanks always be free?

ARGO: Let's say at the end of the beta test Wargames gives you a gift tank for helping "Maybe that KV220 I keep hearing about" and you then deciede you still want to go out and buy that nice boxed set because you want the gift tank "Stuart tank" in that or the tee shirt, mug, whatever. When you go and load it up in your pc will you loose the Gift tank that was originaly given to you "KV220" along with whatever acheivements you have?