Short answer: The illustrated-only restriction is explicitly intended to be temporary and not a permanent policy, but the specific milestone or condition that would trigger its removal has not yet been determined. There is no date or trackable target available at this time - check back here for updates as the details are finalized.
What the restriction means right now
Currently, all visual novels on Vizno and Vizno Uncut must use illustrated or drawn assets for character art and backgrounds. Real-person photography and photorealistic renders sourced from photographs are not permitted. This applies across all content tiers and genres. For more detail on what this restriction covers, see Why is real-person photography not allowed yet?.
Will it definitely be lifted?
The restriction is explicitly launch-period policy and is intended to be lifted in the future. It is not meant to be a permanent rule. However, the specific gating conditions - whatever milestones or criteria must be met before the restriction is removed - have not been finalized or published. Because no trackable milestone exists yet, there is no action creators can take now to prepare for or accelerate the change.
What to do in the meantime
If your project relies on photographic or photorealistic assets, you will need to wait until the policy is updated before publishing that content. Keep an eye on this article and Vizno's official announcements for any changes. If you have questions about what asset types are currently permitted, reviewing What content is prohibited on Vizno? is a good starting point.