Oh no, please don't swap. All those greedy miners, what do they actually do? Unlike you of cause. They think they can burn their own electricity and mine YOUR coin? Or maybe they think they can pay BTC to some random renter and mine YOUR coin? That is so inappropriate I would even ban them from this forum altogether.
Now. If I pretend to be serious, considering your huge premine and the amount of masternodes sold, I am wondering why are you still here? Because second round of scamming is much sweeter? Not even mentally disturbed person is going to give you a penny after your handling of the situation. No swap? Good luck.
Did you even read the announcement properly? It's in big bold writing at the top of the ANN that all node sales were refunded to investors.
Another thing, have you seen the premine distribution? A 5% developer fund is relatively small compared to most coins and the remaining 95% will be distributed in node sales, airdrops and bounties.
Doing a fair swap for miners is impossible at this point because the majority did not listen to the instructions given.