when that time comes they will either lose or ask for a truce. (That is all hypothetical of course)
May be as Im not sure about that. As per our religion, we can't predict about a next moment. However the existing realities suggest otherwise. The puppet govt has been asking Talibans for negotiations, they didn't. Even Afghan President offered them direct talks, they refused. Taliban spokesman informed them that peace talks could only be held, once foreign forces leave Afghanistan.
Lets wait n see, what happens in future.