This situation with Zoin and Noir is not as simple as it seams.
I don't know what will happen, but the data looks interesting.
As of the time of writing this post:
Zoin: Block Height: 358,378 Hashrate: 0.675 MH/s # of Masternodes: 226 (almost half of them with NEW_START_REQUIRED status probably closer to 150 active nodes) Bid / Ask on Cryptobridge (most active market for Zoin): 0.00000812 / 0.00001238
Noir: Block Height: 358,237 Hashrate: 0.607 MH/s # of Masternodes: 40 (9 of them in NEW_START_REQUIRED status, 31 active nodes) Bid / Ask on Cryptopia (most active market for Noir): 0.00000689 / 0.00000741
Everyone is expecting the Zoin chain to die off, but as of right now it looks like that might not happen.
1. The Zoin chain currently has a higher hash rate than the Noir chain (apparently because of a large Chinese mining pool has not switched over to the Noir chain and is still mining Zoin).
2. The Zoin chain has more active masternodes than the Noir chain (probably because the chain split just happened today and most people haven't switched over yet).
3. The price of Zoin is currently higher than the price of Noir on their respective markets (don't know why this is the case).
I don't know the whole history of this re-branding issue and I'm honestly very confused reading some of the messages on this thread.
As a Zoin/Noir holder, here are some things that you should know.
1. This is not really a "re-brand" or a "conversion" from Zoin to Noir. It's a hard fork with 2 separate coins now operating on their own blockchains. If you held Zoin before the chain split, then you are now holding both Zoin and Noir. As far as I know, the chain split occurred around block 358,000 and the Zoin and Noir wallets are now independent from each and operate on separate chains.
2. I think it's possible (unlikely but still possible) that the Zoin chain could survive. It will depend on whether this big Chinese mining pool keeps mining it and whether the remaining 2 exchanges go through with the de-listing or not.
3. If you buy Zoin on Cryptobridge or Coinexchange right now, then you will not get Noir, and there is a strong possibility that the Zoin you bought will soon be worth $0.
4. It should be possible to sell your Zoin on Cryptobridge or Coinexchange right now and still keep your Noir. If you think the Zoin chain is going to die off and become worthless, then you may want to do this ASAP. I'm not familiar with either of theses 2 exchanges so proceed at your own risk obviously.