Sorry to burst your bubble, but Luongo isn't going anywhere. Gillis is not the type of GM that signs a player to a 12 year contract only to trade him two years into it. That would ruin his chances of signing any players long term again.
Him acting like he's uncertain which goalie he's going to keep is just him playing the game of further increasing Schneider's value. Schneider can bring us a huge return this summer as in a top 5 pick. This could very well be an impact player that can step right into out lineup.
Luongo has proven that he can carry this team all the way. He just needs a backup that can carry some of the load during the regualr season, and a D core that doesn't meltdown consistently in the playoffs.
I still believe Luongo can bring us a cup.
I think the odds of Luongo being the one moved went from about 10% before the playoffs started... to about 50% once he was supplanted in elimination games.
I suspect that there are many factors beyond their play which will be included in MG's decision:
1. The respective potential returns you can get in trade. If someone offers a lottery draft pick for Schneider vs. a middle rung veteran (eg. Malone) for Luongo... then it is hard to pass up on a potential franchise player.
2. What Schneider wants for salary and how long he will sign for
3. Related to #2... what the league costs for goalies is shaping up to be, if Price gets a Rinne type deal... then Luongo's contract is looking pretty damn good.
4. The locker-room chemistry. I think Schneider has an edge here, by all accounts he seems incredibly popular with his teammates and management.
5. Is Luongo going to make is easy or hard (a la Nash... who really didn't do his team any favours)