this is from Rovio site:
“At the end of the season, you will receive Mighty Eagle Coins; the amount you receive depends on the level of the frame you had. These Mighty Eagle Coins can be used at the Mighty Eagle Shop where you can buy a lot of cool stuff. The shop is only available at the start of a new season, and if you have spare coins, they will be saved for the next time the shop appears.”
So,
1) certain frame -> certain ammount of coins
I have seen somewhere (now I can’t remember where) that the frame will be exchanged for coins -> so fancy frame or coins, you choose
2) @piggsy the coins will go another boot camp (when? who knows :)
3) @jo-ha points -> coins you see on top100 scoreboard most probably will be final ammount, not bonus as @ryan-kochie suggests (the bonus is already the difference between places)
I am keeping the pace for next frame, getting close to 1900 points.