I don't think it really matters whether ONI is weak or not...I expect a moderate impact event. RONI sneaking into marginally strong territory shouldn't profoundly alter that, either.
What this means is that the extra tropical atmosphere should have some relevence in terms of dictating the predominate hemispheric pattern this winter, since ENSO will not be overwhelming. However, I also expect the extra tropical atmosphere to largely be congruent with the tropics, anyway, so we may still end up with a rather robust la Nina outcome in terms of sensible weather.