Here's my take on the probable main road network in the Vision Lands.
I'm pretty sure that the ultimate fate of LJR Blvd is to connect directly to Crowley Farm Road. Furthermore, I am willing to bet the farm (pun intended) that the existing portion of Crowley Farm Road will be renamed to Louis J Robichaud Blvd.
LJR Blvd was created with the intention for it to be the main east west connector north of Wheeler Blvd, and the symbolism of LJR Blvd leading directly to Universite Avenue is just too delicious to ignore (given Robichaud's importance to the establishment of the Universite de Moncton). LJR Blvd will be a proper four lane boulevard with a centre median - I can't imagine it being any less. Given it's location and course, it will draw some traffic away from both Mountain Road and Wheeler. I'm not sure how the university will feel however about commuter traffic heading downtown passing through the southern edge of the university campus.
The course of the western extent of LJR Blvd is partly governed by the (proposed) Shannex development and by that ugly NB Power ROW. The road however will have to turn sharply south so that it parallels Wheeler and then connects with Crowley Farm Rd.
As for Leopold Belliveau Blvd, it's course is governed by the adjacent university endowment lands, but again I imagine it will deviate southward to connect with LJR Blvd near the current termination of Crowley Farm Road.