just to make 100% sure... if you have coins on bittrex right now then you need to send them to someone right now or can you await the new functioning coin and then do the swap after this point?
Just my opinion but coding in a dev tax or retaining 10 % is going to be essential to the furtherment of this project for updating, fixing, marketing.
Of course it's up to everyone else to speak up on that matter but it is nice just to have some coins there for payment to a dev if things going wrong or bugs come up or we just want an improvement.
The HYPER dev fund will be made up of any left over HYPER not claimed in the swap, I'm sure this will be a large amount in itself and much higher than the existing Dev fund (224k HYPER) which will be added to it. It also currently has around 0.1 BTC in it that was sent by the community.
I highly disagree with a block tax for developers. All fees should go to the ones keeping the coin alive that have the wallet running and staking, not partly to someone who does occasional work for the coin.
If the community cannot support itself then it doesn't need to exist at all.
As for Bittrex, I sent them an email inquiring about how long they will hold onto the HYPER they hold.