Labgrid for parallel target testing

I've been evaluating labgrid for use in a new parallel hardware testing system. Unfortunately there are two main features that don't seem to be currently supported that would be required for our project:

1. Multiple driver/resource instances on a single target
   This is listed as planned feature in the docs so I assume it's already being looked into. The use case I've been looking at is using a serial port for communication with the UUT and a second serial port for communication with a separate power control board. It might be possible to work around this by creating new resource/driver classes for the second device, but this does not seem like a good solution.
2. Shared driver instances between multiple targets
   The power control board I mentioned above has multiple relays to control multiple target boards. I do not think it is currently possible to share a single serial device between boards like this, since bound resources/drivers cannot be controlled by another target.

Are these features planned to be supported?

Start by reviewing the documentation's planned feature for multiple driver/resource instances, then trace how bound resources and drivers relate to targets. Determine whether the design can support multiple instances on one target and shared driver instances across targets; done requires a documented decision or implementation plan for both use cases.