If Bounty Hunter lost its feature in the merge, but also lost all of the proficiencies it used to give, then I would say that that is no kind of "merge" at all. The Bounty Hunter background may simply be gone. If that's the case, then that means (to me) that the Outlander is the new name for the Guide.
In looking back at the playtest packet of last fall, Guide gave Athletics, Nature, and Survival, while Bounty Hunter gave Perception, Search, and Stealth for skill proficiencies. They had nothing in common there. Both of those backgrounds also gave proficiency in Mounts (Land), but others did as well: Commoner, Noble, Soldier, and Thug also gave Mounts (Land), so that's more coincidence that significance; and aside from Mounts (Land), BH gave two Languages, but Guide gave two Tool proficiencies.
There just doesn't seem to be any possible real merging of Bounty Hunter and Guide.