A user asked Kraken support regarding registration of EOS tokens and they replied. Check this: https://np.reddit.com/r/eos/comments/7tba8c/eos_registration_kraken_answer/
Given that, we can assume that all exchanges with EOS listed will also do so. They're just waiting for Block.One to initiate it, but it surely is in the works because one exchange already has a bit of information about it.
