Fabric maintainer here -- Tav's been quite active on our IRC channel while developing much of this, and it's great to have more people excited about improving the tool!
As tswicegood says in another comment, some of these changes (@task, parallelism, etc) aren't unique to Tav's work, so when it comes time to merge we'll draw on the various implementations to see what feels best.
The features unique to his fork will be evaluated like any other contribution and merged in if they fit well and are generally useful (which many seem to be).
The plan right now is post-1.0 (1.0 is scheduled for Pycon or earlier) to round up a lot of major contributions and get them into core, so people like tswicegood don't have to work off of their own forks quite as much :)
As tswicegood says in another comment, some of these changes (@task, parallelism, etc) aren't unique to Tav's work, so when it comes time to merge we'll draw on the various implementations to see what feels best.
The features unique to his fork will be evaluated like any other contribution and merged in if they fit well and are generally useful (which many seem to be).
The plan right now is post-1.0 (1.0 is scheduled for Pycon or earlier) to round up a lot of major contributions and get them into core, so people like tswicegood don't have to work off of their own forks quite as much :)