On the next version we will have a way to convert 2d images to 3d.
You can use the data created using the txt2image, img2img, inpaint or any other image.
It will need to be in the Image editor to be used.
This version might come to the weekly goodies that we have been creating for your patreons.
Hope you like what is coming.
Get your copy at
https://blendermarket.com/products/ceb-stable-diffusion
or at
https://carlosedubarreto.gumroad.com/l/ceb_sd