As with pre-registration for all the new gLTDs like
.guru, once the registry for the gTLD releases it for registration, the registrar will attempt to register the domain name for you.
Note that this does not guarantee that you'll be the registrant (aka., owner) however, as each gLTD registry may have several registrars underneath it, and each registrar can have several pre-registrations for the same domain name.
As GoDaddy indicates here in its FAQ:
Does pre-registering a domain guarantee I’ll get it?
No. Pre-registering a domain reserves your place in our queue for that
domain. The instant the registration phase opens, we’ll submit our
list of registrations electronically using our industry-leading
technology to give you an edge.
If we are unable to get the name, we’ll refund your registration cost.
Any application fees that may have been collected for the Priority
Pre-Registration and Trademark phases will be non-refundable however.
There are no application fees for the standard Pre-Registration phase.
Application fees will vary by domain.
If GoDaddy secures the name and more than one person or company has
pre-registered it, all parties will be invited to a private auction to
decide who gets it.
If they are successful in securing the domain name, and it doesn't go to a private auction, as in the case where there's multiple parties involved (see above), you'll receive an email confirming the registration for the domain and you will be listed as the registrant in their WHOIS database.
Until you're the registrant for the domain however, it won't be displayed under your Account Management Domain Control Panel.
Note that as to when this occurs is up to the registry for
.guru, which is Donuts (Pioneer Cypress, LLC), as indicated here. You can periodically check their TLD launch schedule here and news here.
As indicated on several Donuts accredited registrar sites, the
.guru gTLD appears to be available for registration now, so you should receive an email soon in regards to your pre-registration status.
Also, here is a link to a GoDaddy support document about
.guru domains, along with more information about registering Donuts Domain Names.