For all those confused:
You can keep your coins on NOVA, or on the web wallet or on the Desktop wallet, or in any combination of those.
There will be no problem because the addresses will be the same.
I keep them in desktop wallet. After the fork I will have to import the private keys from old desktop to new desktop wallet
Where I can find those keys?
I found this on another forum by googling:
To export a private key from your Satoshi bitcoin-qt client:
launch your bitcoin client as usual and wait for it to load the blockchain and start up
click on 'help' in the menu bar (top right)
click on 'debug window'
select the 'console' tab
type: walletpassphrase "your walletpassphrase here" 600
type: dumpprivkey [your Bitcoin address here]
this will return the private key, you can copy it now; ensure you clear your clipboard/history afterwards
type: walletlock
It's probably the same command.
If you don't have a passphrase to lock your wallet ignore that command and the last one