Hi, I have QORA in my Poloniex account. Can I use/exchange them somehow to this new coin?
There is no way to burn to get to Qortal now, we had a burn date posted a long time ago...
However, I will be happy to sponsor you to become a minter on Qortal.
You will likely earn more as a minter at this early stage, than you would have from QORA transition anyway... unless you held a LOT of QORA.