Niall Ferguson in The Pity of War seems to make a strong argument that this was feasible, that,
Ludendorff' mental collapse and willing to surrender caused troops dissatisfaction and surrender, but regaining and regrouping loyalist would have been easy w/the well trained German Army.
I don't have a copy w/me so, I'm going from memory. Troop loyalty with the goal defending along with strong defensive positioning, and an unwillingness from say France or Britain to force the issue;
Also, Ferguson suggests there was no sudden collapse but, rather an orderly convincing retreat causing severe causalities to the attacking forces by well placed machine gun pits and just the total destructive path left to the landscape
Tony Ashworth, Trench Warfare 1914-1918 The Live and Let Live System
From the back cover:
..."during small battles, soldiers could and often did make choices not possible during large ones. From these choices, there evolved between enemies a curious culture of live and let live which constrained the war culture of kill or be killed in fundamental ways. It was a culture that was spontaneous, unplanned yet ongoing throughout the war, and it gave soldiers some control over conditions of their existence
Beyond the Christmas Truce, or, obvious orally arranged truces, Ashworth argues that the choice of non-aggression where aggression was the norm. Not sniping, or sniping wide of the target in hopes of recipritory behavior. Not lobbing grenades or aiming wide as w/mortars to satisfy daily requirements, same w/ artillery. All w/the hope the enemy would do the same. And they did on many fronts, described as "quiet fronts" as opposed to active, or non live and live areas.
Men trying to control their own environment even repuking new agresive soldiers to their sector who sniped or violated the quiet truce..
A fascinating book that really looks at war in a dif. way.
Of note: Ashworth is a big S.L.A. Marshall fan backing his date without question, ,but also Marshall's own first world war experience , the 'great sense of relief' on being on a quiet front; not targeting openly obvious enemy. Quoting Marshall in that most people did not find killing appealing.