Pro-Mance will be releasing a 120mm rear travel full-suspension 29er frame, likely by the end of May. I've been advising on it, not sure how much impact that will have. I won't share details yet, but I've pushed for specific modern geo and flip-chip adjustable geometry, along with a few other minor points.
The suspension configuration is similar to the Rocky Mountain Element and I've seen the kinematics charts, they have it dialed. Rear travel should be adjustable between 105-120mm depending on shock stroke, and the bike should play well with forks between 110-130mm travel.
It will be a great lightweight offering and will look somewhat like the Workswell WCB-M-145.