Upstream is adopting many of these changes. A 1.0 release candidate fully integrating the toponaming changes from RealThunder's branch is supposed to be released within a week or two. There are many other convenience features in the RT branch (like better section views, live updates to chamfer/fillets, non-contiguous bodies, etc) but backwards compatibility with existing models is much more important in upstream than it is in experimental forks like RealThunder's. Basically, it just takes time.