The fork will happen when you least expect it, Be prepared!
The fork is automatic after a certain percentage of nodes are running BU right?
Wrong!
Bitcoin Core will trigger SegWit (larger 2mb blocks) when 95% of the nodes on the network are running "Bitcoin Core: v0.13.0" or above.
But,
"Bitcoin Unlimited" will trigger a fork with Unlimited size blocks when they have enough hashpower i.e. 51% (although they have said they will wait for 75%) even though they have only 10% of the nodes (however, they may also be able to access nodes that are Bitcoin Core: v0.12.x and below).
Currently only "Antpool" mining pool are getting ready to run "Bitcoin Unlimited" mining protocol however, they are currently the biggest mining pool.
https://www.blocktrail.com/BTC/pools"Antpool" are owned by the Chinese company "Bitmain".
"Bitmain" produce and supply 75% of all the Bitcoin ASICs mining equipment.
If all the other Chinese mining pools get on board with "Bitcoin Unlimited" the fork
will happen.
Exchanges already have said they will list "Bitcoin Unlimited" as an Altcoin.
I'd also be curious how we would be able to manage both coins if a fork did occur. I'm guessing we would indeed need a new wallet for this.
Yes, wallets with
Replay Protection. But if either
Core or
Ulimited screw up their Replay Protection, we will have replay attacks on both chains and you could lose coins on the other chain . We will also need software to "splt" the coins post fork and put them in separate wallets.
This leaves companies like
electrum with the challange of having to come up with new code in their wallets and also decide if they are to put out a Bitcoin Unlimited Electrum Wallet