[copyleft-next] covered by patent grant

Part of http://faif.us/cast/2014/aug/05/0x4B/ with Fontana and VanL concerned a desire for patent grant covering more than just contributor's contributions/in combination with work, or whole work at time of contributor's contributions (as I [mis]understand them, Apache2 and EPL do former, MPL2 and GPL3 latter). This reminded me to look at copyleft-next again. I assume it is intended to do latter, that is "My Code" means the particular work of authorship I license to You under this License. refers to my contributor version, not the code contributed by me? Near the end of the podcast Bradley said (roughly) that if free software license patent grants aren't covering enough, the those licenses should be fixed. As opposed to using CLAs which offer more coverage -- in theory, though it was noted they usually don't -- any examples that do? I was kind of hoping that I'd discover recent copyleft-next commits adding patent coverage beyond single work, but alas. Any in the pipeline? What are the possible scopes of coverage beyond single work? I'd guess a list of works, but this would be kind of messy, having to be specified elsewhere, or all free software. Latter would be unattractive to many companies, but they already have options. Mike