The Edge is a SoM(system on module), a SoM is often used with a carrier board such as the Captain. The Edge-V is a full function SBC(single board computer). The Edge-V offers more features onboard than the Edge SoM does alone.
As a result, it is unlikely that a carrier board will be introduced for the Edge-V.
An extension board does exist for the Edge-V, the M2X and New M2X. However, the M2X and New M2X do not offer any features that involve displays or USB-C display options to the Edge-V, so likely would not help in your case. It will help in mounting an M.2 PCIe NVMe SSD to the Edge-V.
Note: The Edge-V has two USB-C ports, one is for power delivery only, the other is full featured USB-C with Display. So you could, in theory, have HDMI, USB-C and MIPI displays. As stated by Electr1, I do not know if this has been done in practice yet. Also, some USB-C ports can handle display daisy chaining, I have no clue if the Edge-V has that capability.
pacha2363 has an Edge-V Pro, Captain use is a no go