Moving the general bits of dotLRN back into OpenACS is the plan, as and the person more-or-less managing both of these projects from the technical POV it is on my plate to push for it to happen.
There's already preliminary planning going forward to complete OF's rewrite of the new-portals package - this came up in another thread, and Michael Hinds will be putting together an estimate of what's required, and if it's not too overwhelming may get the go-ahead from his employer to finish it as part of a project they're working on. I'll be coordinating with him on this, and/or doing a bunch of the work (originally I was planning to do it myself)
I've been working slowly on laying the foundation for getting subsites into shape and in 4.6.2 things will be in considerably better shape than was true in 4.5/4.6.
