Your scenario poses no threat to me... none whatsoever. If a trad pope is elected at some future date I will simply ignore him, much the same as I ignored PF's predecessors. The only reason I pay attention to PF is because of his clear, simplistic style and emphasis on preaching a gospel of love/mercy/compassion. I also like his call for clergy/prelates to be less self-referential (i.e., full of self importance) and to smell more like the sheep they are expected to serve.  PF is well aware of how the papacy came into existence (and subsequent rise to power), hence his humble preference to be addressed as the Bishop of Rome.

What makes your stance on faith so precarious is your reliance on the "chair of Peter" to uphold ancient forms/customs/doctrines as validation (if not outright substitution) for your own personal faith. As the very definition of "personal" faith implies, someone else can't do it for you and, in fact, should not hold you back in seeking authentic, personal faith.