Not quite. In instances where the T1 or T2 is present, the T2 itself is a fundamental part of storage architecture, serving as a PCIe/NVMe controller. In the MacBook Pro, the NAND is baked right onto the motherboard. In the iMac Pro, the NAND is attached to a socketed module, but there's no controller on the module itself. You can see its close proximity to the T2 chip in this iMac Pro teardown.
[Courtesy of iFixit]
In short, there's a minimal chance that the SSD would be socketed (considering the inside shots show the NAND configuration similar to todays portables). If it is socketed there is an even lower chance we'd be able to interface with it via off the shelf components.