Logical. But - very difficult to achieve. Probably that would require some sort of parlamentary system in place of present one with very strong President.
I do think the two party duopoly is nearing at end, given the current political climate. The question I think, is which one will be the first to go...
With
both major parties managing to run
very unpopular Presidential candidates last year (and their main party opponents being not much more popular) i consider it possible (and hope for it, to be honest). But it will still take time.