A few random thoughts.
1. The owners have no intention of killing the union. The owners need a union more than the players. Without one they would have to negotiate pensions, health care, etc. with every single player. It is the CBA that allows the league to have a draft, postpone free agency and every other labor item that would be thrown out by the courts without a CBA.
2. Forget this concept of lowered ticket prices. Under any system the goal will be to maximize revenues. The concept of the cap is that the revenues will be shared. There is no concept of lowering revenues. Even in the NFL, the system with the hard cap, the league ticket prices continue to go up and the league looks for every opportunity to harvest new revenues - such as their own network that may soon get its own Thursday night game.
3. My guess is that the union's offer is nothing more than preserving its ability to show that it is trying to find a settlement, but that it's only a pr move. Look for talks to end in about 2 hours with the union calling a press conference to blast management's unwillingness to negotiate.
4. The owners have no incentive to come to a quick decision. Every day this goes on the owners lose less money than they do under the current system and the players lose money that they will never, ever recover.
5. Replacement players? I don't think so. The only league that ever won with replacement players was the NFL. Why? Because they used players that were never going to have to play with or against the regular players. When baseball used replacement players for spring training, they ended up with old farts that were out of the came and career minor league players. The top prospects in the minors weren't used because when the thing was settled, they all had to play together and management didn't want to set up permanent infighting like they ended up when they used replacement umpires. Can you imagine in a violent sport like hockey what would happen to a replacement player when the players came back?