If any strategic planner has half a brain, they'll invade and run redundant supply lines through unoccupied systems, bypassing the enemy units, strongpoints, borders, and populations they don't care about. Especially after the Blakies repeatedly showed how to do it during the Jihad.
And even if no one takes that page out of the Blakie playbook again, I doubt we'll see Operation Revival Mk. II. The Adders are (supposed to be) smarter than that.
I would also not be surprised to find out that the Homeworld Clans never invade the Inner Sphere.
The Bastion and Aggressor ideologies are diametrically opposed on the question of invasion but the Aggressors are open to the use of total warfare. If those factions went to war over whether to invade and pulled out the WMDs, there would be no invasion. They'd knock each other back into the Stone Age.
And if the Bastion ideology continues to be dominant in the Homeworlds and subjugates the Aggressors (bloodlessly or otherwise), there will also be no invasion. The Bastions are isolationists.
The only way there is an invasion is if the Aggressors gain the upper hand in the Homeworlds. Last we knew, they did not have it, and the effort necessary to gain it may forestall invasion forever.
Like the Outbound Light falling into Jaguar hands, I think it will take a deus ex machina to get the Homeworlds to mount an invasion without falling into another round of crippling internecine warfare. And maybe that's what Banacek had planned.
FWIW...