Read The Official Post https://steemit.com/steemit/@steemitblog/proposing-hardfork-0-20-0-velocity

We understand that this change is nuanced and has many moving parts, but we believe the end implementation will be simple to use. As mentioned previously, end users will not need to fully understand this system to use Steem and only those interested in creating accounts will be affected. Below is an example of what creating an account would look like under this system.

We expect the majority of accounts to be created by Steemit and our partners cheaply using stake. The account creation process will appear similar to what it is today with a fee and proof of work field. To create an account via stake, all the creator needs to do is not include a fee or a proof of work. If the creating account does not have enough stake they will need to include an adequate proof of work or STEEM fee to cover the difference. We will provide APIs and tools to calculate how much of a fee is necessary. To create an account without a creator, no creator will be specified in the operation and will include a proof of work adequate to cover the entire fee. If the dynamic cost is too high, regular account creation will be an option. To end users, this will appear identical to what it is today and only affects developers wishing to sign up new users.