on a price of 1 satoshi per flappycoin, that would be 750 bitcoin at the moment.
if there is more interest, it could be like 10 satoshi per flappy so : 7500 bitcoin - that is not really much as market capitalization.

so , a swap like 1:1000 could bring flappy up to a ammount that is still mineable for many years (currently 75 bil >> 75 million ), and should have a great value. ( like 1000 -10000 satoshi per (new-allready swapped"Flaps") as a starting grid )

(block could have like 20 to 100 coins then ? )

all that is only ideas i have , i really don´t know what the current plan is.

edit: i think most of the 75 billion coins are dead and lost somewhere in space.
i think there´s roughly 10 billion coins if ever available.
burning old flappy for new flaps untill  a end date could show us how much actually is available.

edit:
new flaps could be of scrypt , scrypt-n or x13 maybe but needs a completly new source then.
if scrypt, it should use latest doge or ltc code as source.

burning process would need a premine to get flaps for flappy i think- at least i don´t know any other way.
Flapmin can clear that up - or at least what is planned precisly