gmultipath: act/act, path checking?

Cheers,

are there any plans to have gmultipath support for active/active?

Also, is there any way to check available paths periodically? As far as
I unterstand, once gmultipath kicks a certain path due to failure, it
will never come back automatically. (And it won't ever be used if it
isn't working at boot time)

I've found some discussion about this from 2008, but nothing since...

Thanks,
- D.