Do you have a source to support this because the owners are talking about lowering existing contracts under the new NBA. I'm not sure how rookies who have yet to sign would somehow be invincible to CBA renegotiation, especially seeing how they probably would not have signed contracts before the CBA ended.
You should go look at the last NHL lockout. It broke the players and they had to cave because they could not afford to go any longer. As a result they ended up settling for less than the owners had first offered.

