Just like with the F5, the upcoming OPPO F7 is getting a Youth version, which will be presumably slightly lower-specced and will be aimed at a younger market.
The leaked poster shows that also joining the line-up, will be an F7 that has 128GB of internal storage, similar to how the F5 had a 6GB RAM version.
Based on the layout of the poster, it seems that all variants will be sporting a 19:9 notch screen, a 25MP AI-powered front camera, and presumably AR stickers.
The OPPO F7 should be arriving very soon, with the other two variants following shortly after.