A couple ideas:
What about setting it up similar to other sports?
1. There is a season with a schedule so everyone signing up at the beginning is committing to play every match they are scheduled for. To ensure this happens each player must escrow enough to cover like 25k per match on their schedule and they will lose the 25k set aside for that match + forfeit the match for not showing up.
2. Then each match is set for first one to be up 10bis or for 2k hands or w/e. You play a 15-20 match schedule lasting a couple months. These matches are on different days like baseball and not all at the same time like football, that way we would have a chance to rail as many as we want. Also, the scheduling makes it so we know for sure when it will take place and when so we can plan ahead if it is a match we want to see. Then the winners of each division + a wildcard player or something go to a playoff format and play down to a winner.
3. To give people an incentive to play you could have outside businesses sponsor each individual player like NASCAR does. They pay the player a certain amount for playing like 5k per match, just so that the match becomes +ev to the player and they have a reason to play. In return the player uses that company's logo as his avatar during the season and even could like post their logo on that players "home table" or something.
4. Players could gain "home field advantage" during their home matches by having the option to choose between 2-6 tables, if they want to play with or without antes, and if they want to play on deep tables. This gives the games many different elements and truly tests them as all-around players.
5. Once the top 4 players get to the playoffs they no longer have to put up their own money to play. Stars could put up 150k for the 3rd and 4th place finishers, 300k for 2nd and 450k for the winner or something like that.
There may be something similar to this already posted since I didn't read the whole thread but this is just what I see as being the best measure of skills + the most fun to rail + something that gives the players a reason to play + something that gives poker what other sports have that make them so attractive to the average Joe.
Heres an idea of what it could look like. Sorry for poor ms paint skills