Do you think in the future, perhaps POW or it is necessary for the exchange?
No, bitc2.org at least would never turn BTC2 into a POW coin. Almost all POW coins are susceptible to 51% attacks.
Not to mention we believe that investing in mining equipment + using a lot of electricity is worse than just investing in the coins themselves and letting them stake on a laptop.
I agree that POS is a more promising technology, but I wonder why you left possibility for the POW?