I think that perhaps more direct or additional if not more prestigious references might help here  Consider dilatonic quantum gravity ref  ie the paper by Mann and Ohta provides a solution with a nonNewtonian limit apart from a solution with a Newtonian limit  This is JackiwTeitelboim gravity theory a scalartensor theory in  dimensions  This paper is fundamental ie exact solutions of a selfinteracting quantum gravitational system  It combines gravity theory EM theory and quantum mechanics albeit in lower dimensions  This is not cosmology but could have applications in cosmology  It is part a first rate body of work by RB Mann and coworkers with publications in Classical and Quantum Gravity and Phys Rev D  However I have the feeling that you want something more along the lines of Scientific American or Nature  Nonetheless a en passant statement that antigravity ie solutions with a NonNewtonian limit are considered in scalartensor quantum gravity theories could be made But you are probably right that more along these lines needs to be worked out before any statement could be made in wikipedia